diff --git a/services/notification-service/package.json b/services/notification-service/package.json
old mode 100755
new mode 100644
index 7e7b5950..e2d142fd
--- a/services/notification-service/package.json
+++ b/services/notification-service/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@types/express": "4.17.21",
     "@types/node": "20.10.6",
-    "@types/ws": "8.5.10",
+    "@types/ws": "8.18.1",
     "typescript": "5.3.3",
     "tsx": "4.7.0"
   }