diff --git a/package.json b/package.json
index 747404e..3d5cc14 100644
--- a/package.json
+++ b/package.json
@@ -54,6 +54,6 @@
     "mocha": "^3.0.0",
     "require-dir": "^0.3.0",
     "should": "^13.0.1",
-    "vinyl-source-stream": "^1.1.0"
+    "vinyl-source-stream": "^2.0.0"
   }
 }