diff --git a/examples/webpack/package.json b/examples/webpack/package.json
index bb7b2f45c..f68f26416 100644
--- a/examples/webpack/package.json
+++ b/examples/webpack/package.json
@@ -5,8 +5,8 @@
     "build": "webpack"
   },
   "devDependencies": {
-    "webpack": "^4.10.2",
-    "webpack-cli": "^2.1.4",
+    "webpack": "4.21.0",
+    "webpack-cli": "^3.1.2",
     "pdfjs-dist": "../../node_modules/pdfjs-dist"
   }
 }