diff --git a/package.json b/package.json
index 4b2c02a..664f8e7 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   },
   "homepage": "https://github.com/ibm-watson-data-lab/advocated#readme",
   "dependencies": {
-    "async": "^2.0.1",
+    "async": "^3.2.4",
     "body-parser": "^1.15.2",
     "cfenv": "^1.0.3",
     "cloudant-envoy": "^0.2.2",