diff --git a/package.json b/package.json
index f224caa..250292f 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "mocha": "~3.1.2",
     "mocha-lcov-reporter": "~1.2.0",
     "pre-commit": "~1.2.0",
-    "sinon": "~1.17.6",
+    "sinon": "~2.1.0",
     "sinon-chai": "~2.8.0"
   },
   "scripts": {