diff --git a/package.json b/package.json
index efc5003..e9cb4e8 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "github-changes": "^1.0.1",
     "istanbul": "^0.4.2",
     "mocha": "^2.5.1",
-    "sinon": "^1.17.3",
+    "sinon": "^2.1.0",
     "standard": "^7.1.0"
   }
 }