diff --git a/package.json b/package.json
index 435478ec..60b012ba 100644
--- a/package.json
+++ b/package.json
@@ -90,7 +90,7 @@
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-uglify": "^2.0.0",
-    "sinon": "^4.1.2",
+    "sinon": "^5.1.1",
     "style-loader": "0.19.0",
     "url-loader": "0.6.2",
     "webpack": "3.8.1",