diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 536dcb1..a85511b
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "jsonwebtoken": "^7.4.2",
     "kerberos": "0.0.23",
     "mongodb-core": "^2.1.14",
-    "mongoose": "^4.11.5",
+    "mongoose": "^5.7.7",
     "multer": "^1.3.0",
     "passport": "^0.3.2",
     "passport-local": "^1.0.0",