diff --git a/samples/javascript_es6/01.browser-echo/package.json b/samples/javascript_es6/01.browser-echo/package.json
index 203c81cddc..f865d17671 100644
--- a/samples/javascript_es6/01.browser-echo/package.json
+++ b/samples/javascript_es6/01.browser-echo/package.json
@@ -40,6 +40,6 @@
         "style-loader": "^0.23.1",
         "webpack": "^4.35.3",
         "webpack-cli": "^3.3.6",
-        "webpack-dev-server": "^3.7.2"
+        "webpack-dev-server": "^4.0.0"
     }
 }