diff --git a/internal/sandbox/defaults/node-typescript/package-lock.json b/internal/sandbox/defaults/node-typescript/package-lock.json
index 92f6760..6202015 100644
--- a/internal/sandbox/defaults/node-typescript/package-lock.json
+++ b/internal/sandbox/defaults/node-typescript/package-lock.json
@@ -6,7 +6,7 @@
     "": {
       "devDependencies": {
         "@types/node": "24.12.2",
-        "typescript": "5.9.3"
+        "typescript": "6.0.3"
       }
     },
     "node_modules/@types/node": {
@@ -20,9 +20,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
+      "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/internal/sandbox/defaults/node-typescript/package.json b/internal/sandbox/defaults/node-typescript/package.json
index 765c466..f8d3654 100644
--- a/internal/sandbox/defaults/node-typescript/package.json
+++ b/internal/sandbox/defaults/node-typescript/package.json
@@ -2,6 +2,6 @@
   "private": true,
   "devDependencies": {
     "@types/node": "24.12.2",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   }
 }