diff --git a/working-example/package.json b/working-example/package.json
index ba33c6a..6b96301 100644
--- a/working-example/package.json
+++ b/working-example/package.json
@@ -23,7 +23,7 @@
     "react-dom": "^0.14.7",
     "redux": "^3.3.1",
     "webpack": "^1.12.14",
-    "webpack-dev-server": "^1.14.1"
+    "webpack-dev-server": "^4.0.0"
   },
   "devDependencies": {
     "react-hot-loader": "^1.3.0"