diff --git a/package-lock.json b/package-lock.json
index 135aaaa37..236ad818d 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -14541,12 +14466,6 @@
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@@ -18284,22 +18176,22 @@
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@@ -18308,6 +18200,26 @@
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+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-13.0.5.tgz",
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+      "dependencies": {
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+      }
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@@ -18317,6 +18229,15 @@
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+      "resolved": "https://registry.npmjs.org/@types/chai-as-promised/-/chai-as-promised-8.0.1.tgz",
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+      "dev": true,
+      "dependencies": {
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@@ -18331,6 +18252,25 @@
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+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-17.0.3.tgz",
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+      "dev": true,
+      "dependencies": {
+        "@types/sinonjs__fake-timers": "*"
+      }
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+    "packages/ts/file-router/node_modules/@types/sinon-chai": {
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+      "resolved": "https://registry.npmjs.org/@types/sinon-chai/-/sinon-chai-4.0.0.tgz",
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+      "dev": true,
+      "dependencies": {
+        "@types/chai": "*",
+        "@types/sinon": "*"
+      }
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@@ -18358,6 +18298,18 @@
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+      },
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@@ -18378,6 +18330,15 @@
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+      "resolved": "https://registry.npmjs.org/diff/-/diff-7.0.0.tgz",
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+      "dev": true,
+      "engines": {
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@@ -18385,6 +18346,28 @@
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+      "resolved": "https://registry.npmjs.org/nise/-/nise-6.1.1.tgz",
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+      "dependencies": {
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+        "@sinonjs/fake-timers": "^13.0.1",
+        "@sinonjs/text-encoding": "^0.7.3",
+        "just-extend": "^6.2.0",
+        "path-to-regexp": "^8.1.0"
+      }
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+    "packages/ts/file-router/node_modules/path-to-regexp": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.2.0.tgz",
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+      "dev": true,
+      "engines": {
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@@ -18395,6 +18378,34 @@
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+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.2.tgz",
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+      "dev": true,
+      "dependencies": {
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+        "@sinonjs/fake-timers": "^13.0.2",
+        "@sinonjs/samsam": "^8.0.1",
+        "diff": "^7.0.0",
+        "nise": "^6.1.1",
+        "supports-color": "^7.2.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/sinon"
+      }
+    },
+    "packages/ts/file-router/node_modules/sinon-chai": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/sinon-chai/-/sinon-chai-4.0.0.tgz",
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+      "dev": true,
+      "peerDependencies": {
+        "chai": "^5.0.0",
+        "sinon": ">=4.0.0"
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@@ -18420,31 +18431,62 @@
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-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
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@@ -20067,6 +21841,15 @@
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@@ -20136,6 +21969,26 @@
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-      "license": "MIT"
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@@ -20188,6 +22052,25 @@
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@@ -20222,6 +22105,18 @@
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@@ -20242,6 +22137,15 @@
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@@ -20249,6 +22153,28 @@
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@@ -20259,6 +22185,34 @@
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@@ -20291,20 +22245,20 @@
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@@ -20552,6 +22656,18 @@
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@@ -20635,6 +22810,26 @@
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@@ -20924,6 +23270,18 @@
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@@ -21024,6 +23441,26 @@
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       "dev": true,
-      "license": "MIT"
+      "dependencies": {
+        "@types/deep-eql": "*"
+      }
+    },
+    "packages/ts/react-signals/node_modules/@types/chai-as-promised": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@types/chai-as-promised/-/chai-as-promised-8.0.1.tgz",
+      "integrity": "sha512-dAlDhLjJlABwAVYObo9TPWYTRg9NaQM5CXeaeJYcYAkvzUf0JRLIiog88ao2Wqy/20WUnhbbUZcgvngEbJ3YXQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/chai": "*"
+      }
     },
     "packages/ts/react-signals/node_modules/@types/mocha": {
       "version": "10.0.10",
@@ -21066,6 +23514,25 @@
       "dev": true,
       "license": "MIT"
     },
+    "packages/ts/react-signals/node_modules/@types/sinon": {
+      "version": "17.0.3",
+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-17.0.3.tgz",
+      "integrity": "sha512-j3uovdn8ewky9kRBG19bOwaZbexJu/XjtkHyjvUgt4xfPFz18dcORIMqnYh66Fx3Powhcr85NT5+er3+oViapw==",
+      "dev": true,
+      "dependencies": {
+        "@types/sinonjs__fake-timers": "*"
+      }
+    },
+    "packages/ts/react-signals/node_modules/@types/sinon-chai": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@types/sinon-chai/-/sinon-chai-4.0.0.tgz",
+      "integrity": "sha512-Uar+qk3TmeFsUWCwtqRNqNUE7vf34+MCJiQJR5M2rd4nCbhtE8RgTiHwN/mVwbfCjhmO6DiOel/MgzHkRMJJFg==",
+      "dev": true,
+      "dependencies": {
+        "@types/chai": "*",
+        "@types/sinon": "*"
+      }
+    },
     "packages/ts/react-signals/node_modules/@types/validator": {
       "version": "13.12.2",
       "resolved": "https://registry.npmjs.org/@types/validator/-/validator-13.12.2.tgz",
@@ -21100,6 +23567,18 @@
         "node": ">=12"
       }
     },
+    "packages/ts/react-signals/node_modules/chai-as-promised": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/chai-as-promised/-/chai-as-promised-8.0.1.tgz",
+      "integrity": "sha512-OIEJtOL8xxJSH8JJWbIoRjybbzR52iFuDHuF8eb+nTPD6tgXLjRqsgnUGqQfFODxYvq5QdirT0pN9dZ0+Gz6rA==",
+      "dev": true,
+      "dependencies": {
+        "check-error": "^2.0.0"
+      },
+      "peerDependencies": {
+        "chai": ">= 2.1.2 < 6"
+      }
+    },
     "packages/ts/react-signals/node_modules/check-error": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
@@ -21120,6 +23599,15 @@
         "node": ">=6"
       }
     },
+    "packages/ts/react-signals/node_modules/diff": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-7.0.0.tgz",
+      "integrity": "sha512-PJWHUb1RFevKCwaFA9RlG5tCd+FO5iRh9A8HEtkmBH2Li03iJriB6m6JIN4rGz3K3JLawI7/veA1xzRKP6ISBw==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.3.1"
+      }
+    },
     "packages/ts/react-signals/node_modules/loupe": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.2.tgz",
@@ -21145,6 +23633,28 @@
         "node": "^18 || >=20"
       }
     },
+    "packages/ts/react-signals/node_modules/nise": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-6.1.1.tgz",
+      "integrity": "sha512-aMSAzLVY7LyeM60gvBS423nBmIPP+Wy7St7hsb+8/fc1HmeoHJfLO8CKse4u3BtOZvQLJghYPI2i/1WZrEj5/g==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.1",
+        "@sinonjs/fake-timers": "^13.0.1",
+        "@sinonjs/text-encoding": "^0.7.3",
+        "just-extend": "^6.2.0",
+        "path-to-regexp": "^8.1.0"
+      }
+    },
+    "packages/ts/react-signals/node_modules/path-to-regexp": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.2.0.tgz",
+      "integrity": "sha512-TdrF7fW9Rphjq4RjrW0Kp2AW0Ahwu9sRGTkS6bvDi0SCwZlEZYmcfDbEsTz8RVk0EHIS/Vd1bv3JhG+1xZuAyQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=16"
+      }
+    },
     "packages/ts/react-signals/node_modules/pathval": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
@@ -21155,6 +23665,34 @@
         "node": ">= 14.16"
       }
     },
+    "packages/ts/react-signals/node_modules/sinon": {
+      "version": "19.0.2",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.2.tgz",
+      "integrity": "sha512-euuToqM+PjO4UgXeLETsfQiuoyPXlqFezr6YZDFwHR3t4qaX0fZUe1MfPMznTL5f8BWrVS89KduLdMUsxFCO6g==",
+      "dev": true,
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.1",
+        "@sinonjs/fake-timers": "^13.0.2",
+        "@sinonjs/samsam": "^8.0.1",
+        "diff": "^7.0.0",
+        "nise": "^6.1.1",
+        "supports-color": "^7.2.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/sinon"
+      }
+    },
+    "packages/ts/react-signals/node_modules/sinon-chai": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/sinon-chai/-/sinon-chai-4.0.0.tgz",
+      "integrity": "sha512-cWqO7O2I4XfJDWyWElAQ9D/dtdh5Mo0RHndsfiiYyjWnlPzBJdIvjCVURO4EjyYaC3BjV+ISNXCfTXPXTEIEWA==",
+      "dev": true,
+      "peerDependencies": {
+        "chai": "^5.0.0",
+        "sinon": ">=4.0.0"
+      }
+    },
     "packages/ts/react-signals/node_modules/typescript": {
       "version": "5.6.2",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.2.tgz",
diff --git a/packages/java/tests/csrf-context/package-lock.json b/packages/java/tests/csrf-context/package-lock.json
index 50d077bdf..f2decc3c6 100644
--- a/packages/java/tests/csrf-context/package-lock.json
+++ b/packages/java/tests/csrf-context/package-lock.json
@@ -86,19 +86,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -120,23 +120,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -156,19 +156,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -189,22 +189,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -223,22 +223,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -256,21 +256,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -292,22 +292,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -328,22 +328,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -366,22 +366,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -403,23 +403,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -437,20 +437,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -492,16 +492,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -10157,39 +10157,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -10197,8 +10197,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -10206,22 +10206,22 @@
       "version": "file:../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10229,16 +10229,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10246,8 +10246,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10255,23 +10255,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10279,22 +10279,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10302,18 +10302,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10321,8 +10321,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10330,16 +10330,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10347,8 +10347,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10356,17 +10356,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10375,8 +10375,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10384,17 +10384,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10402,8 +10402,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10411,13 +10411,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -10425,8 +10425,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10434,17 +10434,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/csrf/package-lock.json b/packages/java/tests/csrf/package-lock.json
index cecbeee5a..9a3ddd963 100644
--- a/packages/java/tests/csrf/package-lock.json
+++ b/packages/java/tests/csrf/package-lock.json
@@ -86,19 +86,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -120,23 +120,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -156,19 +156,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -189,22 +189,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -223,22 +223,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -256,21 +256,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -292,22 +292,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -328,22 +328,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -366,22 +366,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -403,23 +403,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -437,20 +437,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -492,16 +492,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -9623,39 +9623,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -9663,8 +9663,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -9672,22 +9672,22 @@
       "version": "file:../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9695,16 +9695,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -9712,8 +9712,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9721,23 +9721,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9745,22 +9745,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9768,18 +9768,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -9787,8 +9787,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9796,16 +9796,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -9813,8 +9813,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9822,17 +9822,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -9841,8 +9841,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9850,17 +9850,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -9868,8 +9868,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9877,13 +9877,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -9891,8 +9891,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -9900,17 +9900,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/endpoints discovery/package-lock.json b/packages/java/tests/spring/endpoints discovery/package-lock.json
index a605f5a66..f53834a45 100644
--- a/packages/java/tests/spring/endpoints discovery/package-lock.json	
+++ b/packages/java/tests/spring/endpoints discovery/package-lock.json	
@@ -62,19 +62,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -96,23 +96,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -132,19 +132,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -165,22 +165,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -199,22 +199,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -232,21 +232,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -268,22 +268,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -304,22 +304,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -342,22 +342,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -379,23 +379,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,20 +413,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -468,16 +468,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -10230,39 +10230,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -10270,8 +10270,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -10279,22 +10279,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10302,16 +10302,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10319,8 +10319,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10328,23 +10328,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10352,22 +10352,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10375,18 +10375,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10394,8 +10394,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10403,16 +10403,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10420,8 +10420,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10429,17 +10429,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10448,8 +10448,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10457,17 +10457,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10475,8 +10475,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10484,13 +10484,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -10498,8 +10498,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10507,17 +10507,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/endpoints-contextpath/package-lock.json b/packages/java/tests/spring/endpoints-contextpath/package-lock.json
index 9d388d8b4..c62682d61 100644
--- a/packages/java/tests/spring/endpoints-contextpath/package-lock.json
+++ b/packages/java/tests/spring/endpoints-contextpath/package-lock.json
@@ -62,19 +62,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -96,23 +96,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -132,19 +132,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -165,22 +165,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -199,22 +199,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -232,21 +232,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -268,22 +268,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -304,22 +304,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -342,22 +342,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -379,23 +379,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,20 +413,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -468,16 +468,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -10178,39 +10178,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -10218,8 +10218,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -10227,22 +10227,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10250,16 +10250,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10267,8 +10267,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10276,23 +10276,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10300,22 +10300,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10323,18 +10323,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10342,8 +10342,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10351,16 +10351,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10368,8 +10368,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10377,17 +10377,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10396,8 +10396,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10405,17 +10405,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10423,8 +10423,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10432,13 +10432,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -10446,8 +10446,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10455,17 +10455,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/endpoints-custom-client/package-lock.json b/packages/java/tests/spring/endpoints-custom-client/package-lock.json
index 06c1014ca..0cdb6bc73 100644
--- a/packages/java/tests/spring/endpoints-custom-client/package-lock.json
+++ b/packages/java/tests/spring/endpoints-custom-client/package-lock.json
@@ -62,19 +62,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -96,23 +96,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -132,19 +132,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -165,22 +165,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -199,22 +199,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -232,21 +232,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -268,22 +268,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -304,22 +304,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -342,22 +342,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -379,23 +379,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,20 +413,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -468,16 +468,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -10178,39 +10178,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -10218,8 +10218,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -10227,22 +10227,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10250,16 +10250,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10267,8 +10267,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10276,23 +10276,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10300,22 +10300,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10323,18 +10323,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10342,8 +10342,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10351,16 +10351,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10368,8 +10368,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10377,17 +10377,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10396,8 +10396,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10405,17 +10405,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10423,8 +10423,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10432,13 +10432,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -10446,8 +10446,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10455,17 +10455,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/endpoints-latest-java/package-lock.json b/packages/java/tests/spring/endpoints-latest-java/package-lock.json
index 88259f7b7..46be5a6b4 100644
--- a/packages/java/tests/spring/endpoints-latest-java/package-lock.json
+++ b/packages/java/tests/spring/endpoints-latest-java/package-lock.json
@@ -98,19 +98,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -132,23 +132,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -168,19 +168,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -201,22 +201,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -235,22 +235,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -268,21 +268,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -304,22 +304,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -340,22 +340,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -378,22 +378,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -415,23 +415,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -449,20 +449,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -504,16 +504,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -10320,39 +10320,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -10360,8 +10360,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -10369,22 +10369,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10392,16 +10392,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10409,8 +10409,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10418,23 +10418,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10442,22 +10442,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10465,18 +10465,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10484,8 +10484,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10493,16 +10493,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10510,8 +10510,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10519,17 +10519,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10538,8 +10538,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10547,17 +10547,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10565,8 +10565,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10574,13 +10574,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -10588,8 +10588,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10597,17 +10597,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/endpoints/package-lock.json b/packages/java/tests/spring/endpoints/package-lock.json
index 12eddf477..072436175 100644
--- a/packages/java/tests/spring/endpoints/package-lock.json
+++ b/packages/java/tests/spring/endpoints/package-lock.json
@@ -62,19 +62,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -96,23 +96,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -132,19 +132,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -165,22 +165,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -199,22 +199,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -232,21 +232,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -268,22 +268,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -304,22 +304,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -342,22 +342,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -379,23 +379,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,20 +413,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -468,16 +468,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -10178,39 +10178,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -10218,8 +10218,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -10227,22 +10227,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10250,16 +10250,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10267,8 +10267,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10276,23 +10276,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10300,22 +10300,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10323,18 +10323,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10342,8 +10342,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10351,16 +10351,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10368,8 +10368,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10377,17 +10377,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10396,8 +10396,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10405,17 +10405,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -10423,8 +10423,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10432,13 +10432,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -10446,8 +10446,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -10455,17 +10455,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/react-grid-test/package-lock.json b/packages/java/tests/spring/react-grid-test/package-lock.json
index fd643780d..2e5453091 100644
--- a/packages/java/tests/spring/react-grid-test/package-lock.json
+++ b/packages/java/tests/spring/react-grid-test/package-lock.json
@@ -77,22 +77,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-fs": "^2.0.5",
         "@types/chai-like": "^1.1.3",
         "@types/deep-equal-in-any-order": "^1.0.4",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-deep-equal-ignore-undefined": "^1.1.1",
         "chai-fs": "^2.0.0",
         "chai-like": "^1.1.3",
         "deep-equal-in-any-order": "^2.0.6",
         "mocha": "^11.0.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "peerDependencies": {
@@ -113,19 +113,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -147,23 +147,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -183,19 +183,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -216,22 +216,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -250,22 +250,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -283,21 +283,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -319,22 +319,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -355,22 +355,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -393,22 +393,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -430,23 +430,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -464,20 +464,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -493,16 +493,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -520,20 +520,20 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@web/test-runner": "^0.19.0",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
         "react-router": "^7.0.2",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -556,21 +556,21 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "karma-viewport": "^1.0.9",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -589,20 +589,20 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -623,21 +623,21 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -658,23 +658,23 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "chai-like": "^1.1.3",
         "karma": "^6.4.4",
         "karma-viewport": "^1.0.9",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
diff --git a/packages/java/tests/spring/react-i18n/package-lock.json b/packages/java/tests/spring/react-i18n/package-lock.json
index dd8afab46..86ccbc416 100644
--- a/packages/java/tests/spring/react-i18n/package-lock.json
+++ b/packages/java/tests/spring/react-i18n/package-lock.json
@@ -109,22 +109,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-fs": "^2.0.5",
         "@types/chai-like": "^1.1.3",
         "@types/deep-equal-in-any-order": "^1.0.4",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-deep-equal-ignore-undefined": "^1.1.1",
         "chai-fs": "^2.0.0",
         "chai-like": "^1.1.3",
         "deep-equal-in-any-order": "^2.0.6",
         "mocha": "^11.0.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "peerDependencies": {
@@ -145,19 +145,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -179,23 +179,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -215,19 +215,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -248,22 +248,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -282,22 +282,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -315,21 +315,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -351,22 +351,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -387,22 +387,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -425,22 +425,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -462,23 +462,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -496,20 +496,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -525,16 +525,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -552,20 +552,20 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@web/test-runner": "^0.19.0",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
         "react-router": "^7.0.2",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -588,21 +588,21 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "karma-viewport": "^1.0.9",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -621,20 +621,20 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -655,21 +655,21 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -690,23 +690,23 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "chai-like": "^1.1.3",
         "karma": "^6.4.4",
         "karma-viewport": "^1.0.9",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
diff --git a/packages/java/tests/spring/react-signals/package-lock.json b/packages/java/tests/spring/react-signals/package-lock.json
index 9d6305a68..cb2d5f4fe 100644
--- a/packages/java/tests/spring/react-signals/package-lock.json
+++ b/packages/java/tests/spring/react-signals/package-lock.json
@@ -77,22 +77,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-fs": "^2.0.5",
         "@types/chai-like": "^1.1.3",
         "@types/deep-equal-in-any-order": "^1.0.4",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-deep-equal-ignore-undefined": "^1.1.1",
         "chai-fs": "^2.0.0",
         "chai-like": "^1.1.3",
         "deep-equal-in-any-order": "^2.0.6",
         "mocha": "^11.0.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "peerDependencies": {
@@ -113,19 +113,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -147,23 +147,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -183,19 +183,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -216,22 +216,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -250,22 +250,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -283,21 +283,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -319,22 +319,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -355,22 +355,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -393,22 +393,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -430,23 +430,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -464,20 +464,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -493,16 +493,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -520,20 +520,20 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@web/test-runner": "^0.19.0",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
         "react-router": "^7.0.2",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -556,21 +556,21 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "karma-viewport": "^1.0.9",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -589,20 +589,20 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -623,21 +623,21 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -658,23 +658,23 @@
         "@testing-library/dom": "^10.4.0",
         "@testing-library/react": "^16.1.0",
         "@testing-library/user-event": "^14.5.2",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
         "@types/react": "^18.3.17",
         "@types/react-dom": "^18",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "chai-like": "^1.1.3",
         "karma": "^6.4.4",
         "karma-viewport": "^1.0.9",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
diff --git a/packages/java/tests/spring/security-contextpath/package-lock.json b/packages/java/tests/spring/security-contextpath/package-lock.json
index cf7b603f3..60beabc5a 100644
--- a/packages/java/tests/spring/security-contextpath/package-lock.json
+++ b/packages/java/tests/spring/security-contextpath/package-lock.json
@@ -133,19 +133,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -167,23 +167,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -203,19 +203,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -236,22 +236,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -270,22 +270,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -303,21 +303,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -339,22 +339,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -375,22 +375,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,22 +413,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -450,23 +450,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -484,20 +484,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -539,16 +539,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -11999,39 +11999,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -12039,8 +12039,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -12048,22 +12048,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12071,16 +12071,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12088,8 +12088,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12097,23 +12097,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12121,22 +12121,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12144,18 +12144,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12163,8 +12163,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12172,16 +12172,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12189,8 +12189,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12198,17 +12198,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12217,8 +12217,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12226,17 +12226,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12244,8 +12244,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12253,13 +12253,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -12267,8 +12267,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12276,17 +12276,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/security-jwt/package-lock.json b/packages/java/tests/spring/security-jwt/package-lock.json
index 07349128b..84aa4df19 100644
--- a/packages/java/tests/spring/security-jwt/package-lock.json
+++ b/packages/java/tests/spring/security-jwt/package-lock.json
@@ -133,19 +133,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -167,23 +167,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -203,19 +203,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -236,22 +236,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -270,22 +270,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -303,21 +303,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -339,22 +339,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -375,22 +375,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,22 +413,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -450,23 +450,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -484,20 +484,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -539,16 +539,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -11999,39 +11999,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -12039,8 +12039,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -12048,22 +12048,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12071,16 +12071,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12088,8 +12088,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12097,23 +12097,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12121,22 +12121,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12144,18 +12144,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12163,8 +12163,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12172,16 +12172,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12189,8 +12189,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12198,17 +12198,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12217,8 +12217,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12226,17 +12226,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12244,8 +12244,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12253,13 +12253,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -12267,8 +12267,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12276,17 +12276,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/security-urlmapping/package-lock.json b/packages/java/tests/spring/security-urlmapping/package-lock.json
index 90f9b46e0..460be236a 100644
--- a/packages/java/tests/spring/security-urlmapping/package-lock.json
+++ b/packages/java/tests/spring/security-urlmapping/package-lock.json
@@ -133,19 +133,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -167,23 +167,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -203,19 +203,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -236,22 +236,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -270,22 +270,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -303,21 +303,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -339,22 +339,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -375,22 +375,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -413,22 +413,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -450,23 +450,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -484,20 +484,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -539,16 +539,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -11975,39 +11975,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -12015,8 +12015,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -12024,22 +12024,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12047,16 +12047,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12064,8 +12064,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12073,23 +12073,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12097,22 +12097,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12120,18 +12120,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12139,8 +12139,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12148,16 +12148,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12165,8 +12165,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12174,17 +12174,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12193,8 +12193,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12202,17 +12202,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12220,8 +12220,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12229,13 +12229,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -12243,8 +12243,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12252,17 +12252,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }
diff --git a/packages/java/tests/spring/security/package-lock.json b/packages/java/tests/spring/security/package-lock.json
index 47281c671..afe554842 100644
--- a/packages/java/tests/spring/security/package-lock.json
+++ b/packages/java/tests/spring/security/package-lock.json
@@ -128,19 +128,19 @@
       "devDependencies": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -162,23 +162,23 @@
         "tsgen": "bin/index.js"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -198,19 +198,19 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -231,22 +231,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -265,22 +265,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -298,21 +298,21 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -334,22 +334,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -370,22 +370,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -408,22 +408,22 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -445,23 +445,23 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -479,20 +479,20 @@
         "typescript": "5.7.2"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       },
       "engines": {
@@ -534,16 +534,16 @@
         "validator": "^13.12.0"
       },
       "devDependencies": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       },
       "peerDependencies": {
@@ -11854,39 +11854,39 @@
       "requires": {
         "@open-wc/testing": "^3.2.2",
         "@types/atmosphere.js": "^2.1.6",
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/js-cookie": "^3.0.6",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/common-frontend": "^0.0.19",
         "atmosphere.js": "^3.1.3",
         "chai": "^5.1.2",
-        "chai-as-promised": "^7.1.2",
+        "chai-as-promised": "^8.0.1",
         "chai-dom": "^1.12.0",
         "fetch-mock": "^9.11.0",
         "js-cookie": "^3.0.5",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2"
       }
     },
     "@vaadin/hilla-generator-cli": {
       "version": "file:../../../../ts/generator-cli",
       "requires": {
-        "@types/chai": "^4.3.20",
-        "@types/chai-as-promised": "^7.1.8",
+        "@types/chai": "^5.0.1",
+        "@types/chai-as-promised": "^8.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
-        "chai-as-promised": "^7.1.2",
+        "chai": "^5.1.2",
+        "chai-as-promised": "^8.0.1",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "get-stdin": "^9.0.0",
@@ -11894,8 +11894,8 @@
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2"
       }
     },
@@ -11903,22 +11903,22 @@
       "version": "file:../../../../ts/generator-core",
       "requires": {
         "@apidevtools/swagger-parser": "^10.1.0",
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "meow": "^13.2.0",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -11926,16 +11926,16 @@
     "@vaadin/hilla-generator-plugin-backbone": {
       "version": "file:../../../../ts/generator-plugin-backbone",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -11943,8 +11943,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -11952,23 +11952,23 @@
     "@vaadin/hilla-generator-plugin-barrel": {
       "version": "file:../../../../ts/generator-plugin-barrel",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -11976,22 +11976,22 @@
     "@vaadin/hilla-generator-plugin-client": {
       "version": "file:../../../../ts/generator-plugin-client",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "mocha": "^11.0.1",
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -11999,18 +11999,18 @@
     "@vaadin/hilla-generator-plugin-model": {
       "version": "file:../../../../ts/generator-plugin-model",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "@vaadin/hilla-lit-form": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12018,8 +12018,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12027,16 +12027,16 @@
     "@vaadin/hilla-generator-plugin-push": {
       "version": "file:../../../../ts/generator-plugin-push",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12044,8 +12044,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12053,17 +12053,17 @@
     "@vaadin/hilla-generator-plugin-signals": {
       "version": "file:../../../../ts/generator-plugin-signals",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-backbone": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12072,8 +12072,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12081,17 +12081,17 @@
     "@vaadin/hilla-generator-plugin-subtypes": {
       "version": "file:../../../../ts/generator-plugin-subtypes",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@vaadin/hilla-generator-core": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-client": "24.7.0-alpha3",
         "@vaadin/hilla-generator-plugin-model": "24.7.0-alpha3",
         "@vaadin/hilla-generator-utils": "24.7.0-alpha3",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
         "fast-deep-equal": "^3.1.3",
@@ -12099,8 +12099,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "openapi-types": "^12.1.3",
         "pino": "^9.5.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12108,13 +12108,13 @@
     "@vaadin/hilla-generator-utils": {
       "version": "file:../../../../ts/generator-utils",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^20.17.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "c8": "^10.1.3",
-        "chai": "^4.5.0",
+        "chai": "^5.1.2",
         "chai-like": "^1.1.3",
         "concurrently": "^9.1.0",
         "copyfiles": "^2.4.1",
@@ -12122,8 +12122,8 @@
         "monocart-coverage-reports": "^2.11.5",
         "pino": "^9.5.0",
         "pino-pretty": "^10.3.1",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "type-fest": "^4.30.2",
         "typescript": "5.7.2"
       }
@@ -12131,17 +12131,17 @@
     "@vaadin/hilla-lit-form": {
       "version": "file:../../../../ts/lit-form",
       "requires": {
-        "@types/chai": "^4.3.20",
+        "@types/chai": "^5.0.1",
         "@types/chai-dom": "^1.11.3",
         "@types/mocha": "^10.0.10",
-        "@types/sinon": "^10.0.20",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon": "^17.0.3",
+        "@types/sinon-chai": "^4.0.0",
         "@types/validator": "^13.12.2",
         "@vaadin/hilla-frontend": "24.7.0-alpha3",
         "chai": "^5.1.2",
         "chai-dom": "^1.12.0",
-        "sinon": "^16.1.3",
-        "sinon-chai": "^3.7.0",
+        "sinon": "^19.0.2",
+        "sinon-chai": "^4.0.0",
         "typescript": "5.7.2",
         "validator": "^13.12.0"
       }