diff --git a/ws/package.json b/ws/package.json
index 61e756f..392c066 100644
--- a/ws/package.json
+++ b/ws/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "dependencies": {
     "express": "^4.14.0",
-    "mongoose": "^4.7.6"
+    "mongoose": "^5.3.9"
   },
   "devDependencies": {},
   "scripts": {