diff --git a/build/webpack.prod.conf.js b/build/webpack.prod.conf.js
index 7541838..f60196d 100644
--- a/build/webpack.prod.conf.js
+++ b/build/webpack.prod.conf.js
@@ -7,17 +7,18 @@ const merge = require('webpack-merge')
 const baseWebpackConfig = require('./webpack.base.conf')
 const CopyWebpackPlugin = require('copy-webpack-plugin')
 const HtmlWebpackPlugin = require('html-webpack-plugin')
-const ExtractTextPlugin = require('extract-text-webpack-plugin')
+const MiniCssExtractPlugin = require('mini-css-extract-plugin')
 const OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')
 const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
 
-function resolve (dir) {
+function resolve(dir) {
   return path.join(__dirname, '..', dir)
 }
 
 const env = require('../config/prod.env')
 
 const webpackConfig = merge(baseWebpackConfig, {
+  mode: 'production',
   module: {
     rules: utils.styleLoaders({
       sourceMap: config.build.productionSourceMap,
@@ -29,7 +30,7 @@ const webpackConfig = merge(baseWebpackConfig, {
   output: {
     path: config.build.assetsRoot,
     filename: utils.assetsPath('js/[name].[chunkhash].js'),
-    chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')
+    chunkFilename: utils.assetsPath('js/[name].[chunkhash].js') //need test
   },
   plugins: [
     // http://vuejs.github.io/vue-loader/en/workflow/production.html
@@ -46,20 +47,23 @@ const webpackConfig = merge(baseWebpackConfig, {
       parallel: true
     }),
     // extract css into its own file
-    new ExtractTextPlugin({
-      filename: utils.assetsPath('css/[name].[contenthash].css'),
-      // Setting the following option to `false` will not extract CSS from codesplit chunks.
-      // Their CSS will instead be inserted dynamically with style-loader when the codesplit chunk has been loaded by webpack.
-      // increasing file size: https://github.com/vuejs-templates/webpack/issues/1110
-      allChunks: false,
+    new MiniCssExtractPlugin({
+      filename: utils.assetsPath('css/[name].[chunkhash].css'),
     }),
     // Compress extracted CSS. We are using this plugin so that possible
     // duplicated CSS from different components can be deduped.
-    new OptimizeCSSPlugin({
-      cssProcessorOptions: config.build.productionSourceMap
-        ? { safe: true, map: { inline: false } }
-        : { safe: true }
-    }),
+    // new OptimizeCSSPlugin({
+    //   cssProcessorOptions: config.build.productionSourceMap ?
+    //     {
+    //       safe: true,
+    //       map: {
+    //         inline: false
+    //       }
+    //     } :
+    //     {
+    //       safe: true
+    //     }
+    // }),
     // generate dist index.html with correct asset hash for caching.
     // you can customize output by editing /index.html
     // see https://github.com/ampedandwired/html-webpack-plugin
@@ -76,52 +80,36 @@ const webpackConfig = merge(baseWebpackConfig, {
         // more options:
         // https://github.com/kangax/html-minifier#options-quick-reference
       },
-      // necessary to consistently work with multiple chunks via CommonsChunkPlugin
+      // necessary to consistently work with multiple chunks
       chunksSortMode: 'dependency'
     }),
     // keep module.id stable when vender modules does not change
     new webpack.HashedModuleIdsPlugin(),
-    // enable scope hoisting
-    new webpack.optimize.ModuleConcatenationPlugin(),
-    // split vendor js into its own file
-    new webpack.optimize.CommonsChunkPlugin({
-      name: 'vendor',
-      minChunks (module) {
-        // any required modules inside node_modules are extracted to vendor
-        return (
-          module.resource &&
-          /\.js$/.test(module.resource) &&
-          module.resource.indexOf(
-            path.join(__dirname, '../node_modules')
-          ) === 0
-        )
-      }
-    }),
-    // extract webpack runtime and module manifest to its own file in order to
-    // prevent vendor hash from being updated whenever app bundle is updated
-    new webpack.optimize.CommonsChunkPlugin({
-      name: 'manifest',
-      minChunks: Infinity
-    }),
-    // This instance extracts shared chunks from code splitted chunks and bundles them
-    // in a separate chunk, similar to the vendor chunk
-    // see: https://webpack.js.org/plugins/commons-chunk-plugin/#extra-async-commons-chunk
-    new webpack.optimize.CommonsChunkPlugin({
-      name: 'app',
-      async: 'vendor-async',
-      children: true,
-      minChunks: 3
-    }),
-
     // copy custom static assets
-    new CopyWebpackPlugin([
-      {
-        from: path.resolve(__dirname, '../static'),
-        to: config.build.assetsSubDirectory,
-        ignore: ['.*']
-      }
-    ])
-  ]
+    new CopyWebpackPlugin([{
+      from: path.resolve(__dirname, '../static'),
+      to: config.build.assetsSubDirectory,
+      ignore: ['.*']
+    }])
+  ],
+  optimization: {
+    splitChunks: {
+      chunks: 'all',
+      name: 'vendors',
+    },
+    runtimeChunk: 'single',
+    minimizer: [
+      new UglifyJsPlugin({
+        uglifyOptions: {
+          compress: {
+            warnings: false
+          }
+        },
+        sourceMap: config.build.productionSourceMap,
+        parallel: true
+      }),
+    ],
+  }
 })
 
 if (config.build.productionGzip) {