diff --git a/package.json b/package.json
index 9535b5c..698d8cc 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "nock": "^9.0.1",
     "nodemon": "^1.10.2",
     "rewire": "^2.3.4",
-    "sinon": "^1.15.4",
+    "sinon": "^2.1.0",
     "sinon-chai": "^2.8.0"
   },
   "scripts": {