diff --git a/package.json b/package.json
index 0143c14..4d1e9d2 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
     "redis": "~1.0.0",
     "iniparser": "~1.0.5",
     "whiskers": "~0.3.3",
-    "express": "~4.13.3"
+    "express": "~4.13.3",
+    "async": "~1.4.2"
   }
 }