diff --git a/package.json b/package.json
index 3db81b9..7eb0e07 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "mocha-clean": "^1.0.0",
     "mockery": "^1.7.0",
     "nyc": "^6.6.1",
-    "sinon": "^1.17.4",
+    "sinon": "^2.2.0",
     "sinon-chai": "^2.8.0"
   },
   "repository": {