diff --git a/package.json b/package.json
index 8767b71..d785f31 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "eslint-config-pedant": "^0.9.0",
     "nyc": "^10.0.0",
     "proxyquire": "^1.7.9",
-    "sinon": "^2.1.0"
+    "sinon": "^3.2.1"
   },
   "scripts": {
     "pretest": "eslint .",