diff --git a/build/webpack.prod.conf.js b/build/webpack.prod.conf.js
index d48a8f85..5444d743 100644
--- a/build/webpack.prod.conf.js
+++ b/build/webpack.prod.conf.js
@@ -40,7 +40,8 @@ const webpackConfig = merge(baseWebpackConfig, {
     }),
     // extract css into its own file
     new MiniCssExtractPlugin({
-      filename: utils.assetsPath('css/[name].[chunkhash].css'),
+      filename: utils.assetsPath('css/[name].[contenthash:8].css'),
+      chunkFilename: utils.assetsPath('css/[name].[contenthash:8].css')
     }),
     // generate dist index.html with correct asset hash for caching.
     // you can customize output by editing /index.html