diff --git a/build/postcss.config.js b/build/postcss.config.js
index 425228eaac..c7c9a17b05 100644
--- a/build/postcss.config.js
+++ b/build/postcss.config.js
@@ -7,6 +7,6 @@ module.exports = (ctx) => ({
     sourcesContent: true
   },
   plugins: {
-    autoprefixer: {}
+    autoprefixer: { cascade: false }
   }
 })