diff --git a/package-lock.json b/package-lock.json
index a14596c1a..0f1aee9d5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -62,7 +62,7 @@
                 "puppeteer": "^24.17.0",
                 "sass": "^1.90.0",
                 "timekeeper": "^2.3.1",
-                "typescript": "^5.8.3",
+                "typescript": "^5.9.3",
                 "webextension-polyfill": "^0.12.0",
                 "yargs": "^18.0.0"
             },
@@ -10885,9 +10885,9 @@
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         },
         "node_modules/typescript": {
-            "version": "5.8.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-            "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+            "version": "5.9.3",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+            "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
             "devOptional": true,
             "license": "Apache-2.0",
             "bin": {
@@ -19298,9 +19298,9 @@
             "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA=="
         },
         "typescript": {
-            "version": "5.8.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-            "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+            "version": "5.9.3",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+            "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
             "devOptional": true
         },
         "ua-parser-js": {
diff --git a/package.json b/package.json
index 8211c73e7..ce3bb7336 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
         "puppeteer": "^24.17.0",
         "sass": "^1.90.0",
         "timekeeper": "^2.3.1",
-        "typescript": "^5.8.3",
+        "typescript": "^5.9.3",
         "webextension-polyfill": "^0.12.0",
         "yargs": "^18.0.0"
     },