diff --git a/code/multisig/package-lock.json b/code/multisig/package-lock.json
index cf499f55..7651d808 100644
--- a/code/multisig/package-lock.json
+++ b/code/multisig/package-lock.json
@@ -10,9 +10,9 @@
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         "@matterlabs/zksync-contracts": "^0.6.1",
         "@openzeppelin/contracts": "4.9.5",
-        "@types/chai": "^4.3.16",
+        "@types/chai": "^5.0.0",
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-        "chai": "^4.5.0",
+        "chai": "^5.1.1",
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         "hardhat": "^2.22.7",
@@ -1070,6 +1070,25 @@
         "zksync-ethers": "^6.8.0"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-deploy/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-ethers": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@matterlabs/hardhat-zksync-ethers/-/hardhat-zksync-ethers-1.2.0.tgz",
@@ -1089,6 +1108,25 @@
         "zksync-ethers": "^6.11.2"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-ethers/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-node": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@matterlabs/hardhat-zksync-node/-/hardhat-zksync-node-1.1.1.tgz",
@@ -1110,6 +1148,25 @@
         "hardhat": "^2.22.5"
       }
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+    "node_modules/@matterlabs/hardhat-zksync-node/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-solc": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/@matterlabs/hardhat-zksync-solc/-/hardhat-zksync-solc-1.2.4.tgz",
@@ -1133,6 +1190,25 @@
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       }
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+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-upgradable": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/@matterlabs/hardhat-zksync-upgradable/-/hardhat-zksync-upgradable-1.6.0.tgz",
@@ -1184,6 +1260,44 @@
         "hardhat": "^2.22.5"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-verify/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@matterlabs/hardhat-zksync/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/zksync-contracts": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/@matterlabs/zksync-contracts/-/zksync-contracts-0.6.1.tgz",
@@ -2596,9 +2710,9 @@
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-      "integrity": "sha512-2hHHvQBVE2FiSK4eN0Br6snX9MtolHaTo/batnLjlGRhoQzlCL61iVpxoqO7SfFyOw+P/pwv+0zNHzKoGWz9Cw==",
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+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.0.0.tgz",
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@@ -3230,22 +3344,70 @@
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+      "resolved": "https://registry.npmjs.org/chai/-/chai-5.1.1.tgz",
+      "integrity": "sha512-pT1ZgP8rPNqUgieVaEY+ryQr6Q4HXNg8Ei9UnLUrjN4IA7dvQC5JB+/kxVcPNDHyBcc/26CXPkbNzq3qwrOEKA==",
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-        "check-error": "^1.0.3",
-        "deep-eql": "^4.1.3",
-        "get-func-name": "^2.0.2",
-        "loupe": "^2.3.6",
-        "pathval": "^1.1.1",
-        "type-detect": "^4.1.0"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.1.1",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
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+        "node": ">=12"
+      }
+    },
+    "node_modules/chai/node_modules/assertion-error": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
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+      "license": "MIT",
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+      }
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+    "node_modules/chai/node_modules/pathval": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
+      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
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diff --git a/code/multisig/package.json b/code/multisig/package.json
index 292a71bd..f6847051 100644
--- a/code/multisig/package.json
+++ b/code/multisig/package.json
@@ -17,9 +17,9 @@
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     "@matterlabs/zksync-contracts": "^0.6.1",
     "@openzeppelin/contracts": "4.9.5",
-    "@types/chai": "^4.3.16",
+    "@types/chai": "^5.0.0",
     "@types/mocha": "^10.0.7",
-    "chai": "^4.5.0",
+    "chai": "^5.1.1",
     "dotenv": "^16.4.5",
     "ethers": "^6.13.2",
     "hardhat": "^2.22.7",
diff --git a/code/webauthn/contracts/package-lock.json b/code/webauthn/contracts/package-lock.json
index d9d71c54..88cd42de 100644
--- a/code/webauthn/contracts/package-lock.json
+++ b/code/webauthn/contracts/package-lock.json
@@ -11,9 +11,9 @@
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         "@nomicfoundation/hardhat-verify": "^2.0.9",
         "@openzeppelin/contracts": "^4.9.5",
-        "@types/chai": "^4.3.16",
+        "@types/chai": "^5.0.0",
         "@types/mocha": "^10.0.7",
-        "chai": "^4.5.0",
+        "chai": "^5.1.1",
         "dotenv": "^16.4.5",
         "ethers": "^6.13.2",
         "hardhat": "^2.22.7",
@@ -654,6 +654,25 @@
         "path-browserify": "^1.0.1"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-ethers/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-ethers/node_modules/code-block-writer": {
       "version": "13.0.2",
       "resolved": "https://registry.npmjs.org/code-block-writer/-/code-block-writer-13.0.2.tgz",
@@ -690,6 +709,25 @@
         "hardhat": "^2.22.5"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-node/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-solc": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/@matterlabs/hardhat-zksync-solc/-/hardhat-zksync-solc-1.2.3.tgz",
@@ -712,6 +750,25 @@
         "hardhat": "^2.22.5"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-solc/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-upgradable": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/@matterlabs/hardhat-zksync-upgradable/-/hardhat-zksync-upgradable-1.5.2.tgz",
@@ -768,6 +825,25 @@
         "path-browserify": "^1.0.1"
       }
     },
+    "node_modules/@matterlabs/hardhat-zksync-upgradable/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync-upgradable/node_modules/code-block-writer": {
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       "resolved": "https://registry.npmjs.org/code-block-writer/-/code-block-writer-13.0.2.tgz",
@@ -808,6 +884,25 @@
         "hardhat": "^2.22.5"
       }
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+    "node_modules/@matterlabs/hardhat-zksync-verify/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync/node_modules/@matterlabs/hardhat-zksync-deploy": {
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@@ -842,6 +937,25 @@
         "path-browserify": "^1.0.1"
       }
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+    "node_modules/@matterlabs/hardhat-zksync/node_modules/chai": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.5.0.tgz",
+      "integrity": "sha512-RITGBfijLkBddZvnn8jdqoTypxvqbOLYQkGGxXzeFjVHvudaPw0HNFD9x928/eUwYWd2dPCugVqspGALTZZQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.3",
+        "deep-eql": "^4.1.3",
+        "get-func-name": "^2.0.2",
+        "loupe": "^2.3.6",
+        "pathval": "^1.1.1",
+        "type-detect": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@matterlabs/hardhat-zksync/node_modules/code-block-writer": {
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       "resolved": "https://registry.npmjs.org/code-block-writer/-/code-block-writer-13.0.2.tgz",
@@ -2041,10 +2155,11 @@
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+      "dev": true,
+      "license": "MIT"
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     "node_modules/@types/lru-cache": {
       "version": "5.1.1",
@@ -2671,21 +2786,70 @@
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       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "assertion-error": "^1.1.0",
-        "check-error": "^1.0.3",
-        "deep-eql": "^4.1.3",
-        "get-func-name": "^2.0.2",
-        "loupe": "^2.3.6",
-        "pathval": "^1.1.1",
-        "type-detect": "^4.1.0"
+        "assertion-error": "^2.0.1",
+        "check-error": "^2.1.1",
+        "deep-eql": "^5.0.1",
+        "loupe": "^3.1.0",
+        "pathval": "^2.0.0"
       },
       "engines": {
-        "node": ">=4"
+        "node": ">=12"
+      }
+    },
+    "node_modules/chai/node_modules/assertion-error": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/chai/node_modules/check-error": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 16"
+      }
+    },
+    "node_modules/chai/node_modules/deep-eql": {
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+      "dev": true,
+      "license": "MIT",
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+      }
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+    "node_modules/chai/node_modules/loupe": {
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+      "license": "MIT",
+      "dependencies": {
+        "get-func-name": "^2.0.1"
+      }
+    },
+    "node_modules/chai/node_modules/pathval": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
+      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
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+      "license": "MIT",
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     "node_modules/chalk": {
diff --git a/code/webauthn/contracts/package.json b/code/webauthn/contracts/package.json
index c28354cd..fa17f9ea 100644
--- a/code/webauthn/contracts/package.json
+++ b/code/webauthn/contracts/package.json
@@ -20,9 +20,9 @@
     "@matterlabs/zksync-contracts": "^0.6.1",
     "@nomicfoundation/hardhat-verify": "^2.0.9",
     "@openzeppelin/contracts": "^4.9.5",
-    "@types/chai": "^4.3.16",
+    "@types/chai": "^5.0.0",
     "@types/mocha": "^10.0.7",
-    "chai": "^4.5.0",
+    "chai": "^5.1.1",
     "dotenv": "^16.4.5",
     "ethers": "^6.13.2",
     "hardhat": "^2.22.7",