diff --git a/package.json b/package.json
index d24ad98..1e3bf95 100644
--- a/package.json
+++ b/package.json
@@ -54,6 +54,6 @@
     "iced-coffee-script": "^108.0.11",
     "istanbul": "^0.4.5",
     "mocha": "^3.1.2",
-    "sinon": "^1.17.5"
+    "sinon": "^2.0.0"
   }
 }