diff --git a/extension/package.json b/extension/package.json
index 8b56a62f96..8f25c0bb9c 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -66,7 +66,7 @@
     "electron": "^31.7.6",
     "esbuild": "^0.24.0",
     "globals": "^15.13.0",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
     "pug": "^3.0.3",
diff --git a/packages/map2tree/package.json b/packages/map2tree/package.json
index 4ef288f9d9..3df75ccdaf 100755
--- a/packages/map2tree/package.json
+++ b/packages/map2tree/package.json
@@ -42,7 +42,7 @@
   "devDependencies": {
     "@types/jest": "^29.5.14",
     "@types/lodash-es": "^4.17.12",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "jest": "^29.7.0",
     "rimraf": "^6.0.1",
     "ts-jest": "^29.2.5",
diff --git a/packages/react-json-tree/examples/package.json b/packages/react-json-tree/examples/package.json
index 95b32a9d40..1f37962d51 100644
--- a/packages/react-json-tree/examples/package.json
+++ b/packages/react-json-tree/examples/package.json
@@ -19,7 +19,7 @@
     "type-check": "tsc --noEmit"
   },
   "dependencies": {
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "react": "^18.3.1",
     "react-base16-styling": "workspace:^",
     "react-dom": "^18.3.1",
diff --git a/packages/redux-devtools-extension/package.json b/packages/redux-devtools-extension/package.json
index 256196db2b..f96ca30f95 100644
--- a/packages/redux-devtools-extension/package.json
+++ b/packages/redux-devtools-extension/package.json
@@ -30,7 +30,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.26.0",
-    "immutable": "^4.3.7"
+    "immutable": "^5.0.3"
   },
   "devDependencies": {
     "@babel/cli": "^7.26.4",
diff --git a/packages/redux-devtools-inspector-monitor-test-tab/demo/package.json b/packages/redux-devtools-inspector-monitor-test-tab/demo/package.json
index bc89f656a4..4aa5ddb519 100644
--- a/packages/redux-devtools-inspector-monitor-test-tab/demo/package.json
+++ b/packages/redux-devtools-inspector-monitor-test-tab/demo/package.json
@@ -16,7 +16,7 @@
     "@redux-devtools/inspector-monitor": "workspace:^",
     "@redux-devtools/inspector-monitor-test-tab": "workspace:^",
     "@redux-devtools/ui": "workspace:^",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "lodash.shuffle": "^4.2.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/packages/redux-devtools-inspector-monitor/demo/package.json b/packages/redux-devtools-inspector-monitor/demo/package.json
index e8239fb389..4e8bd29fd0 100644
--- a/packages/redux-devtools-inspector-monitor/demo/package.json
+++ b/packages/redux-devtools-inspector-monitor/demo/package.json
@@ -14,7 +14,7 @@
     "@redux-devtools/core": "workspace:^",
     "@redux-devtools/dock-monitor": "workspace:^",
     "@redux-devtools/inspector-monitor": "workspace:^",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "lodash.shuffle": "^4.2.0",
     "react": "^18.3.1",
     "react-base16-styling": "workspace:^",
diff --git a/packages/redux-devtools-inspector-monitor/package.json b/packages/redux-devtools-inspector-monitor/package.json
index fc8114db02..3a1f1f46bc 100644
--- a/packages/redux-devtools-inspector-monitor/package.json
+++ b/packages/redux-devtools-inspector-monitor/package.json
@@ -43,7 +43,7 @@
     "@types/lodash": "^4.17.13",
     "dateformat": "^5.0.3",
     "hex-rgba": "^1.0.2",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "javascript-stringify": "^2.1.0",
     "jsondiffpatch": "^0.6.0",
     "lodash.debounce": "^4.0.8",
diff --git a/packages/redux-devtools-rtk-query-monitor/package.json b/packages/redux-devtools-rtk-query-monitor/package.json
index 9b48f527be..015e466804 100644
--- a/packages/redux-devtools-rtk-query-monitor/package.json
+++ b/packages/redux-devtools-rtk-query-monitor/package.json
@@ -48,7 +48,7 @@
     "@redux-devtools/ui": "workspace:^",
     "@types/lodash": "^4.17.13",
     "hex-rgba": "^1.0.2",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "lodash.debounce": "^4.0.8",
     "react-base16-styling": "workspace:^",
     "react-json-tree": "workspace:^"
diff --git a/packages/redux-devtools-serialize/package.json b/packages/redux-devtools-serialize/package.json
index 3ef5a33afb..f44f79ca6a 100644
--- a/packages/redux-devtools-serialize/package.json
+++ b/packages/redux-devtools-serialize/package.json
@@ -49,13 +49,13 @@
     "@babel/preset-typescript": "^7.26.0",
     "@types/jest": "^29.5.14",
     "@types/jsan": "^3.1.5",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "jest": "^29.7.0",
     "rimraf": "^6.0.1",
     "ts-jest": "^29.2.5",
     "typescript": "~5.7.2"
   },
   "peerDependencies": {
-    "immutable": "^4.3.7"
+    "immutable": "^5.0.3"
   }
 }
diff --git a/packages/redux-devtools-utils/package.json b/packages/redux-devtools-utils/package.json
index 77d1e77fe9..fd95d6fbb3 100644
--- a/packages/redux-devtools-utils/package.json
+++ b/packages/redux-devtools-utils/package.json
@@ -37,7 +37,7 @@
     "@redux-devtools/serialize": "workspace:^",
     "@types/get-params": "^0.1.2",
     "get-params": "^0.1.2",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "jsan": "^3.1.14",
     "nanoid": "^5.0.9",
     "redux": "^5.0.1"
@@ -56,7 +56,7 @@
   },
   "peerDependencies": {
     "@redux-devtools/core": "workspace:^",
-    "immutable": "^4.3.7",
+    "immutable": "^5.0.3",
     "redux": "^4.0.0 || ^5.0.0"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7a45a8df4f..a302c3c450 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -172,8 +172,8 @@ importers:
         specifier: ^15.13.0
         version: 15.13.0
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       jest:
         specifier: ^29.7.0
         version: 29.7.0(@types/node@22.10.1)(babel-plugin-macros@3.1.0)(ts-node@10.9.2(@swc/core@1.10.0(@swc/helpers@0.5.15))(@types/node@22.10.1)(typescript@5.7.2))
@@ -313,8 +313,8 @@ importers:
         specifier: ^4.17.12
         version: 4.17.12
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       jest:
         specifier: ^29.7.0
         version: 29.7.0(@types/node@22.10.1)(babel-plugin-macros@3.1.0)(ts-node@10.9.2(@swc/core@1.10.0(@swc/helpers@0.5.15))(@types/node@22.10.1)(typescript@5.7.2))
@@ -524,8 +524,8 @@ importers:
   packages/react-json-tree/examples:
     dependencies:
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       react:
         specifier: ^18.3.1
         version: 18.3.1
@@ -1212,8 +1212,8 @@ importers:
         specifier: ^7.26.0
         version: 7.26.0
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
     devDependencies:
       '@babel/cli':
         specifier: ^7.26.4
@@ -1270,8 +1270,8 @@ importers:
         specifier: ^1.0.2
         version: 1.0.2
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       javascript-stringify:
         specifier: ^2.1.0
         version: 2.1.0
@@ -1476,8 +1476,8 @@ importers:
         specifier: workspace:^
         version: link:../../redux-devtools-ui
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       lodash.shuffle:
         specifier: ^4.2.0
         version: 4.2.0
@@ -1697,8 +1697,8 @@ importers:
         specifier: workspace:^
         version: link:..
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       lodash.shuffle:
         specifier: ^4.2.0
         version: 4.2.0
@@ -1979,8 +1979,8 @@ importers:
         specifier: ^1.0.2
         version: 1.0.2
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       lodash.debounce:
         specifier: ^4.0.8
         version: 4.0.8
@@ -2231,8 +2231,8 @@ importers:
         specifier: ^3.1.5
         version: 3.1.5
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       jest:
         specifier: ^29.7.0
         version: 29.7.0(@types/node@22.10.1)(babel-plugin-macros@3.1.0)(ts-node@10.9.2(@swc/core@1.10.0(@swc/helpers@0.5.15))(@types/node@22.10.1)(typescript@5.7.2))
@@ -2594,8 +2594,8 @@ importers:
         specifier: ^0.1.2
         version: 0.1.2
       immutable:
-        specifier: ^4.3.7
-        version: 4.3.7
+        specifier: ^5.0.3
+        version: 5.0.3
       jsan:
         specifier: ^3.1.14
         version: 3.1.14
@@ -7350,8 +7350,8 @@ packages:
   immer@10.1.1:
     resolution: {integrity: sha512-s2MPrmjovJcoMaHtx6K11Ra7oD05NT97w1IC5zpMkT6Atjr7H8LjaDd81iIxUYpMKSRRNMJE703M1Fhr/TctHw==}
 
-  immutable@4.3.7:
-    resolution: {integrity: sha512-1hqclzwYwjRDFLjcFxOM5AYkkG0rpFPpr1RLPMEuGczoS7YA8gLhy8SWXYRAA/XwfEHpfo3cw5JGioS32fnMRw==}
+  immutable@5.0.3:
+    resolution: {integrity: sha512-P8IdPQHq3lA1xVeBRi5VPqUm5HDgKnx0Ru51wZz5mjxHr5n3RWhjIpOFU7ybkUxfB+5IToy+OLaHYDBIWsv+uw==}
 
   import-fresh@3.3.0:
     resolution: {integrity: sha512-veYYhQa+D1QBKznvhUHxb8faxlrwUnxseDAbAp457E0wLNio2bOSKnjYDhMj+YiAq61xrMGhQk9iXVk5FzgQMw==}
@@ -15933,7 +15933,7 @@ snapshots:
 
   immer@10.1.1: {}
 
-  immutable@4.3.7: {}
+  immutable@5.0.3: {}
 
   import-fresh@3.3.0:
     dependencies: