diff --git a/examples/preact/package.json b/examples/preact/package.json
index c88aea592bb1f3..132ebb55395066 100644
--- a/examples/preact/package.json
+++ b/examples/preact/package.json
@@ -52,7 +52,7 @@
     "terser-webpack-plugin": "1.2.2",
     "url-loader": "1.1.2",
     "webpack": "4.28.3",
-    "webpack-dev-server": "3.1.14",
+    "webpack-dev-server": "4.0.0",
     "webpack-manifest-plugin": "2.0.4",
     "workbox-webpack-plugin": "3.6.3"
   },