diff --git a/README.md b/README.md
index a3c2d4f..f8aa112 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ npm install gulp-jsx-coverage mocha --save-dev
```
* You will need to install coffee-script when you require('foobar.coffee') or write tests as foobar.coffee
+* You will need to install isparta when you enable isparta
* The golden rule: **Use .jsx as ext name** , require('file.jsx')
* The golden rule: **Use .coffee as ext name** , require('file.coffee')
* Regular JavaScript files with .js extension may use ES6 features, including mocha tests