diff --git a/package.json b/package.json
index 613c3d1..b76e02d 100644
--- a/package.json
+++ b/package.json
@@ -106,7 +106,7 @@
     "phantomjs-prebuilt": "2.1.13",
     "process": "0.11.9",
     "semantic-release": "^6.3.2",
-    "sinon": "1.17.6",
+    "sinon": "2.2.0",
     "watchify": "3.7.0",
     "webpack": "1.13.3",
     "webpack-dev-server": "1.16.2",