diff --git a/oauth/package.json b/oauth/package.json
index 6a9d28b7..65f4eccb 100644
--- a/oauth/package.json
+++ b/oauth/package.json
@@ -18,7 +18,7 @@
     "eslint-plugin-import": "^2.2.0",
     "express": "^4.15.2",
     "lodash": "^4.17.4",
-    "mongoose": "^4.8.6",
+    "mongoose": "^5.7.7",
     "morgan": "^1.8.1",
     "oauth2-server": "^v3.0.0-b3.1"
   }