diff --git a/.kktrc.ts b/.kktrc.ts
index 159b8c7e..699c6ede 100644
--- a/.kktrc.ts
+++ b/.kktrc.ts
@@ -20,6 +20,24 @@ export default (conf: Configuration, env: string, options: LoaderConfOptions) =>
     VERSION: JSON.stringify(pkg.version),
   }));
 
+  conf.optimization = {
+    ...conf.optimization,
+    splitChunks: {
+      cacheGroups: {
+        reactvendor: {
+          test: /[\\/]node_modules[\\/](react|react-dom)[\\/]/,
+          name: 'react-vendor',
+          chunks: 'all',
+        },
+        prismjs: {
+          test: /[\\/]node_modules[\\/](prismjs)[\\/]/,
+          name: 'prismjs-vendor',
+          chunks: 'async',
+        },
+      }
+    }
+  }
+
   return conf;
 }