diff --git a/package.json b/package.json
index e60897d..64f05ea 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "google-scholar": "^1.2.5",
     "lodash": "^4.2.1",
     "mysql": "^2.5.2",
-    "sequelize": "^3.19.2",
+    "sequelize": "^5.21.1",
     "socket.io": "^1.0.6"
   },
   "devDependencies": {