diff --git a/package.json b/package.json
index 43522f9..dbb1f41 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "karma-mocha": "1.x || ^0.2.0",
     "load-grunt-tasks": "^3.2.0",
     "mocha": "^3.2.0",
-    "sinon": "^1.17.1",
+    "sinon": "^2.0.0",
     "standard": "^7.1.2"
   },
   "contributors": [