diff --git a/package.json b/package.json
index ffdb02c..64fd8be 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "vdom-to-html": "^2.2.0",
     "virtual-dom": "^2.1.1",
     "webpack": "^1.12.9",
-    "webpack-dev-server": "^1.14.0",
+    "webpack-dev-server": "^4.0.0",
     "copy-webpack-plugin": "^1.1.1",
     "xo": "^0.12.1"
   },