diff --git a/package.json b/package.json
index afd4020..45143a4 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   },
   "license": "Apache-2.0",
   "dependencies": {
-    "async": "^2.4.1",
+    "async": "^3.2.2",
     "body-parser": "^1.17.2",
     "metrics-tracker-client": "*",
     "cfenv": "1.0.4",