diff --git a/package.json b/package.json
index dc6b665..0ce635d 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "jsdoc-to-markdown": "^1.3.3",
     "nyc": "^7.1.0",
     "semantic-release": "^4.3.5",
-    "sinon": "^1.17.3"
+    "sinon": "^2.1.0"
   },
   "repository": {
     "type": "git",