diff --git a/package.json b/package.json
index c3abcea..6dc1a53 100644
--- a/package.json
+++ b/package.json
@@ -188,7 +188,7 @@
     "phantomjs": "^1.9.18",
     "require-dir": "^0.3.0",
     "run-sequence": "^1.1.4",
-    "sinon": "^1.17.1",
+    "sinon": "^2.3.1",
     "sinon-chai": "^2.8.0",
     "yargs": "^3.32.0"
   }