1 files changed, 2 insertions, 1 deletions
diff --git a/webpack.config.js b/webpack.config.js
index caf45d31b..61a7e4196 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,6 +1,7 @@
 /**
  * This is to generate the umd bundle only
  */
+const _ = require('lodash');
 const webpack = require('webpack');
 const path = require('path');
 const production = process.env.NODE_ENV === 'production';
@@ -9,7 +10,7 @@ let entry = {
     'index': './src/index.ts',
 };
 if (production) {
-    entry = Object.assign({}, entry, {'index.min': './src/index.ts'});
+    entry = _.assign({}, entry, {'index.min': './src/index.ts'});
 }
 
 module.exports = {