diff --git a/package.json b/package.json
index 5c2c6e6..6bf1810 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "jshint": "^2.9.1",
     "lazypipe": "^1.0.1",
     "mocha": "^3.0.0",
-    "sinon": "^1.17.3",
+    "sinon": "^2.0.0",
     "sinon-chai": "^2.8.0",
     "through2": "^2.0.1"
   }