diff --git a/package.json b/package.json
index c162673..47c9f5c 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,6 @@
     "vows": "^0.8.1"
   },
   "dependencies": {
-    "concat-stream": "^1.5.2"
+    "concat-stream": "^2.0.0"
   }
 }