diff --git a/extension/package.json b/extension/package.json
index 90df121..13ac291 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -14,7 +14,7 @@
   "dependencies": {},
   "devDependencies": {
     "wxt": "^0.20.26",
-    "typescript": "^5.5.0"
+    "typescript": "^6.0.3"
   },
   "pnpm": {
     "onlyBuiltDependencies": ["esbuild"],
diff --git a/extension/pnpm-lock.yaml b/extension/pnpm-lock.yaml
index 409ef19..e0b566d 100644
--- a/extension/pnpm-lock.yaml
+++ b/extension/pnpm-lock.yaml
@@ -9,8 +9,8 @@ importers:
   .:
     devDependencies:
       typescript:
-        specifier: ^5.5.0
-        version: 5.9.3
+        specifier: ^6.0.3
+        version: 6.0.3
       wxt:
         specifier: ^0.20.26
         version: 0.20.26(@types/node@25.8.0)(jiti@2.7.0)(rolldown@1.0.1)(rollup@4.60.1)
@@ -1610,8 +1610,8 @@ packages:
   typedarray@0.0.6:
     resolution: {integrity: sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA==}
 
-  typescript@5.9.3:
-    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
+  typescript@6.0.3:
+    resolution: {integrity: sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -3206,7 +3206,7 @@ snapshots:
 
   typedarray@0.0.6: {}
 
-  typescript@5.9.3: {}
+  typescript@6.0.3: {}
 
   ufo@1.6.4: {}