diff --git a/package.json b/package.json
index 4d7c9337..5cc5d81a 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "private": true,
   "name": "tacoscript-monorepo",
   "devDependencies": {
-    "async": "^1.5.0",
+    "async": "^3.2.5",
     "babel-cli": "^6.3.17",
     "babel-eslint": "^6.0.4",
     "babel-plugin-transform-class-properties": "^6.6.0",