diff --git a/README.md b/README.md
index 6f7169e..39bece5 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Component wrapper for [Google reCAPTCHA v2][reCAPTCHA]
 ## Installation
 
 ```shell
-npm install --save react-google-recaptcha
+npm install --save react-google-recaptcha react-async-script
 ```
 
 ### React 0.13