diff --git a/samples/download-test-extension/package-lock.json b/samples/download-test-extension/package-lock.json
old mode 100755
new mode 100644
index 768f9ef..44ce780
--- a/samples/download-test-extension/package-lock.json
+++ b/samples/download-test-extension/package-lock.json
@@ -19,6 +19,9 @@
         "typescript": "^5.9.3",
         "webpack": "^5.104.1",
         "webpack-cli": "^6.0.1"
+      },
+      "engines": {
+        "node": "22.14.x"
       }
     },
     "node_modules/@discoveryjs/json-ext": {
@@ -2268,9 +2271,9 @@
       }
     },
     "node_modules/immutable": {
-      "version": "3.8.2",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.2.tgz",
-      "integrity": "sha512-15gZoQ38eYjEjxkorfbcgBKBL6R7T459OuK+CpcWt7O3KF4uPCx2tD0uFETlUDIyo+1789crbMhTvQBSR5yBMg==",
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.3.tgz",
+      "integrity": "sha512-AUY/VyX0E5XlibOmWt10uabJzam1zlYjwiEgQSDc5+UIkFNaF9WM0JxXKaNMGf+F/ffUF+7kRKXM9A7C0xXqMg==",
       "dev": true,
       "license": "MIT",
       "engines": {