diff --git a/test-app/package-lock.json b/test-app/package-lock.json
index d3b7e8bd9..472dd23a1 100644
--- a/test-app/package-lock.json
+++ b/test-app/package-lock.json
@@ -46,7 +46,7 @@
         "angular-eslint": "19.8.1",
         "eslint": "9.39.2",
         "jsdom": "30.0.1",
-        "typescript": "5.8.3",
+        "typescript": "6.0.3",
         "typescript-eslint": "8.67.0",
         "vitest": "2.1.9"
       }
@@ -19962,9 +19962,9 @@
       "license": "MIT"
     },
     "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": "6.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
+      "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/test-app/package.json b/test-app/package.json
index 7ee5c1ddc..9189dde81 100644
--- a/test-app/package.json
+++ b/test-app/package.json
@@ -53,7 +53,7 @@
     "angular-eslint": "19.8.1",
     "eslint": "9.39.2",
     "jsdom": "30.0.1",
-    "typescript": "5.8.3",
+    "typescript": "6.0.3",
     "typescript-eslint": "8.67.0",
     "vitest": "2.1.9"
   },