diff --git a/lib/common/options.mjs b/lib/common/options.mjs
index de4b5aa513..794b6d647f 100644
--- a/lib/common/options.mjs
+++ b/lib/common/options.mjs
@@ -174,5 +174,9 @@ Options.from = function (_options) {
     options.generate.fallback = '404.html'
   }
 
+  // TODO: remove when mini-css-extract-plugin supports HMR
+  if (options.dev) {
+    options.build.extractCSS = false
+  }
   return options
 }