diff --git a/packages/code-generator/package.json b/packages/code-generator/package.json
index aa4770f19..a3959d2e6 100644
--- a/packages/code-generator/package.json
+++ b/packages/code-generator/package.json
@@ -27,7 +27,8 @@
     "tsconfig-paths": "^3.9.0",
     "tsconfig-paths-webpack-plugin": "^3.2.0",
     "webpack": "^4.42.1",
-    "webpack-cli": "^3.3.11"
+    "webpack-cli": "^3.3.11",
+    "webpack-node-externals": "^1.7.2"
   },
   "ava": {
     "compileEnhancements": false,
diff --git a/packages/code-generator/tsconfig.json b/packages/code-generator/tsconfig.json
index f04b1db45..2660ef448 100644
--- a/packages/code-generator/tsconfig.json
+++ b/packages/code-generator/tsconfig.json
@@ -1,15 +1,10 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "module": "es2015",
-    "noImplicitAny": true,
-    "sourceMap": true,
-    "moduleResolution": "node",
-    "isolatedModules": true,
     "target": "es5",
     "strictNullChecks": true,
     "inlineSources": false,
-    "lib": ["es2015"],
+    "lib": ["es6"],
     "downlevelIteration": true,
     "paths": {
       "@/*": ["./src/*"]
diff --git a/packages/code-generator/webpack.config.js b/packages/code-generator/webpack.config.js
index ea8081dbc..b4c35274e 100644
--- a/packages/code-generator/webpack.config.js
+++ b/packages/code-generator/webpack.config.js
@@ -1,4 +1,5 @@
 const path = require('path');
+const nodeExternals = require('webpack-node-externals');
 const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');
 
 module.exports = {
@@ -6,7 +7,7 @@ module.exports = {
   target: 'node',
   entry: {
     index: './src/index.ts',
-    // demo: './src/demo/main.ts',
+    demo: './src/demo/main.ts',
   },
   module: {
     rules: [
@@ -26,4 +27,5 @@ module.exports = {
     filename: '[name].js',
     path: path.resolve(__dirname, 'lib'),
   },
+  externals: [nodeExternals()], // in order to ignore all modules in node_modules folder
 };