diff --git a/packages/aaa-polyfills/package.json b/packages/aaa-polyfills/package.json
index 4db7278..15452d8 100644
--- a/packages/aaa-polyfills/package.json
+++ b/packages/aaa-polyfills/package.json
@@ -29,7 +29,7 @@
     "continuation-local-storage": "3.2.0",
     "lodash": "4.17.15",
     "node-fetch": "1.7.2",
-    "sequelize": "3.31.0",
+    "sequelize": "5.21.6",
     "source-map-support": "0.4.15",
     "uuid": "3.1.0"
   },