diff --git a/README.md b/README.md
index 3b1c47f..5673798 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ This plugin uses [terser](https://github.com/terser-js/terser) to minify your Ja
 
 ## Getting Started
 
-If you are using webpack v5 or above you do not need to install this plugin. Webpack v5 comes with the latest `terser-webpack-plugin` out of the box.
+If you are using webpack v5 or above you do not need to install this plugin. Webpack v5 comes with the latest `terser-webpack-plugin` out of the box. Using Webpack v4, you have to install `terser-webpack-plugin` v4.
 
 To begin, you'll need to install `terser-webpack-plugin`: