diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 4d10c1f..468e844
--- a/package.json
+++ b/package.json
@@ -27,6 +27,6 @@
     "bcrypt": "^2.0.0",
     "express": "^4.15.3",
     "jsonwebtoken": "^8.2.1",
-    "mongoose": "^4.10.2"
+    "mongoose": "^5.8.9"
   }
 }