diff --git a/package.json b/package.json
index 4cca286..e50daa0 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "in-publish": "^2.0.0",
     "jsdoc": "^3.4.0",
     "lab": "^10.3.2",
-    "sinon": "^1.17.3",
+    "sinon": "^2.1.0",
     "standard": "^7.0.1"
   },
   "scripts": {