diff --git a/package.json b/package.json
index 3f42bcb26..8ca36c68c 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "taffy"
   ],
   "dependencies": {
-    "async": "^2.1.2",
+    "async": "^2.4.0",
     "body-parser": "^1.15.2",
     "colors": "^1.1.2",
     "cors": "^2.8.1",