diff --git a/lib/webpack.js b/lib/webpack.js
index b0c7cc3..367e886 100644
--- a/lib/webpack.js
+++ b/lib/webpack.js
@@ -45,6 +45,7 @@ exports.chainWebpack = (webpackConfig) => {
   if (isProd) {
     webpackConfig.plugin('html').tap(args => {
       args[0].minify.removeComments = false
+      args[0].minify.caseSensitive = true
       return args
     })
   }