diff --git a/package.json b/package.json
index 2e578d4..c1d5e91 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "concurrently": "^3.5.1",
     "ejs": "~2.5.7",
     "express": "^4.16.0",
-    "mongoose": "^4.10.8",
+    "mongoose": "^5.7.7",
     "morgan": "^1.9.0",
     "node-fetch": "^2.3.0",
     "rlp": "^2.0.0",