diff --git a/webpack.config.js b/webpack.config.js
index 833c5ed66..522aa1048 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -31,7 +31,6 @@ module.exports = (env, argv) => ({
                 use: {
                     loader: 'babel-loader',
                     options: {
-                        sourceType: 'unambiguous',
                         presets: [
                             '@babel/preset-env',
                             '@babel/preset-react'