diff --git a/package-lock.json b/package-lock.json
index ac9827bac90..af1c521f9e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
         "remark-rehype": "^11.1.2",
         "ts-json-schema-generator": "^2.4.0",
         "tsx": "^4.20.6",
-        "typescript": "^5.9.2",
+        "typescript": "^5.9.3",
         "typescript-eslint": "^8.45.0",
         "unified": "^11.0.5",
         "web-specs": "^3.65.0",
@@ -6404,9 +6404,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.9.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
-      "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index 8cd381f7a42..4c29cffa0e3 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "remark-rehype": "^11.1.2",
     "ts-json-schema-generator": "^2.4.0",
     "tsx": "^4.20.6",
-    "typescript": "^5.9.2",
+    "typescript": "^5.9.3",
     "typescript-eslint": "^8.45.0",
     "unified": "^11.0.5",
     "web-specs": "^3.65.0",
diff --git a/packages/web-features/package-lock.json b/packages/web-features/package-lock.json
index 9e41172b450..3726f17fd89 100644
--- a/packages/web-features/package-lock.json
+++ b/packages/web-features/package-lock.json
@@ -11,7 +11,7 @@
       "devDependencies": {
         "@types/node": "^20.19.19",
         "tsup": "^8.5.0",
-        "typescript": "^5.9.2"
+        "typescript": "^5.9.3"
       }
     },
     "node_modules/@esbuild/aix-ppc64": {
@@ -1739,9 +1739,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.9.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
-      "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/packages/web-features/package.json b/packages/web-features/package.json
index 03f0fd035ae..4c014add303 100644
--- a/packages/web-features/package.json
+++ b/packages/web-features/package.json
@@ -30,6 +30,6 @@
   "devDependencies": {
     "@types/node": "^20.19.19",
     "tsup": "^8.5.0",
-    "typescript": "^5.9.2"
+    "typescript": "^5.9.3"
   }
 }