diff --git a/README.md b/README.md
index 48757c74..1b0e1d23 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ Within your webpack configuration object, you'll need to add the babel-loader to
 module: {
   rules: [
     {
-      test: /\.js$/,
+      test: /\.(js|mjs)$/,
       exclude: /(node_modules|bower_components)/,
       use: {
         loader: 'babel-loader',
@@ -68,7 +68,7 @@ You can pass options to the loader by using the [`options`](https://webpack.js.o
 module: {
   rules: [
     {
-      test: /\.js$/,
+      test: /\.(js|mjs)$/,
       exclude: /(node_modules|bower_components)/,
       use: {
         loader: 'babel-loader',
@@ -119,7 +119,7 @@ rules: [
   // the 'transform-runtime' plugin tells Babel to
   // require the runtime instead of inlining it.
   {
-    test: /\.js$/,
+    test: /\.(js|mjs)$/,
     exclude: /(node_modules|bower_components)/,
     use: {
       loader: 'babel-loader',
@@ -183,7 +183,7 @@ require('./app');
 If you receive this message, it means that you have the npm package `babel` installed and are using the short notation of the loader in the webpack config (which is not valid anymore as of webpack 2.x):
 ```javascript
   {
-    test: /\.js$/,
+    test: /\.(js|mjs)$/,
     loader: 'babel',
   }
 ```
@@ -194,7 +194,7 @@ To fix this, you should uninstall the npm package `babel`, as it is deprecated i
 In the case one of your dependencies is installing `babel` and you cannot uninstall it yourself, use the complete name of the loader in the webpack config:
 ```javascript
   {
-    test: /\.js$/,
+    test: /\.(js|mjs)$/,
     loader: 'babel-loader',
   }
 ```