diff --git a/package.json b/package.json
index 3ddf315..9328902 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "express": "~4.13.1",
     "express-session": "^1.13.0",
     "gravatar": "^1.4.0",
-    "mongoose": "^4.4.5",
+    "mongoose": "^5.9.9",
     "morgan": "~1.6.1",
     "node-sass-middleware": "*",
     "passport": "^0.3.2",