diff --git a/package.json b/package.json
index a03dfcc..45a1b04 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "qs": "^6.4.0",
     "request": "^2.81.0",
     "sanitize-html": "^1.14.1",
-    "sequelize": "^3.30.4",
+    "sequelize": "^4.0.0",
     "sequelize-cli": "^2.8.0",
     "ws": "^3.1.0"
   },