diff --git a/package.json b/package.json
index 96da0d0..e7088f3 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "koa-graphql-batch": "^1.1.0",
     "koa-logger": "^3.1.0",
     "koa-router": "^7.2.1",
-    "mongoose": "^4.12.4"
+    "mongoose": "^5.4.10"
   },
   "devDependencies": {
     "babel-cli": "^6.26.0",