diff --git a/package.json b/package.json
index c57c82df..cd1d0c3f 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "rollup": "^2.3.3",
     "rollup-plugin-commonjs": "^9.2.0",
     "rollup-plugin-node-resolve": "^3.4.0",
-    "rollup-plugin-postcss": "^1.6.2",
+    "rollup-plugin-postcss": "^3.1.1",
     "rollup-plugin-terser": "^5.3.0",
     "rollup-plugin-typescript": "^1.0.0",
     "ts-node": "^7.0.1",
diff --git a/rollup.config.js b/rollup.config.js
index f44b3bb9..df982d69 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -73,16 +73,13 @@ const baseConfigs = [
 let configs = [];
 
 for (const c of baseConfigs) {
-  const plugins = [
-    resolve(),
-    commonjs({ namedExports }),
-    typescript(),
+  const basePlugins = [resolve(), commonjs({ namedExports }), typescript()];
+  const plugins = basePlugins.concat(
     postcss({
       extract: false,
       inject: false,
     }),
-  ];
-  const minifyPlugins = plugins.concat(terser());
+  );
   // browser
   configs.push({
     input: c.input,
@@ -98,7 +95,14 @@ for (const c of baseConfigs) {
   // browser + minify
   configs.push({
     input: c.input,
-    plugins: minifyPlugins,
+    plugins: basePlugins.concat(
+      postcss({
+        extract: true,
+        minimize: true,
+        sourceMap: true,
+      }),
+      terser(),
+    ),
     output: [
       {
         name: c.name,