diff --git a/package.json b/package.json
index e190554..30f6dd4 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "nyc": "^11.0.2",
     "release-it": "^2.7.3",
     "rimraf": "^2.5.4",
-    "sinon": "^3.0.0",
+    "sinon": "^4.0.0",
     "webpack": "^3.0.0"
   },
   "dependencies": {