diff --git a/webpack.base.config.js b/webpack.base.config.js
index 33405d9..f9fa76f 100644
--- a/webpack.base.config.js
+++ b/webpack.base.config.js
@@ -1,7 +1,4 @@
-const nodeExternals = require('webpack-node-externals');
-
 module.exports = ({ babel }) => ({
-  externals: [nodeExternals()],
   mode: process.env.NODE_ENV === 'production' ? 'production' : 'development',
   devtool: process.env.NODE_ENV === 'production' ? 'source-map' : 'eval-source-map',
   module: {
@@ -49,12 +46,6 @@ module.exports = ({ babel }) => ({
       http: require.resolve("stream-http")
     }
   },
-  optimization: {
-    moduleIds: 'deterministic',
-    splitChunks: {
-      chunks: 'all',
-    },
-  },
   stats: {
     colors: true,
     modules: true,
diff --git a/webpack.main.config.js b/webpack.main.config.js
index fb58e23..f98714a 100644
--- a/webpack.main.config.js
+++ b/webpack.main.config.js
@@ -1,4 +1,5 @@
 const path = require('path');
+const nodeExternals = require('webpack-node-externals');
 const baseConfig = require('./webpack.base.config')
 
 module.exports = {
@@ -15,6 +16,7 @@ module.exports = {
       ],
     },
   }),
+  externals: [nodeExternals()],
   entry: './src/node/main.js',
   output: {
     path: path.resolve(__dirname, '.webpack/main'),