diff --git a/README.md b/README.md
index 1ba64765d46..4cb5e4d611d 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Most things that you can do manually in the browser can be done using Puppeteer!
 - Test Chrome Extensions.
 <!-- [END usecases] -->
 
-Give it a spin: [https://try-puppeteer.appspot.com/](https://try-puppeteer.appspot.com/)
+Give it a spin: [https://try-puppeteer.appspot.com/](https://try-puppeteer.appspot.com/) (please note that it runs an older version (v1.4.0) of Puppeteer).
 
 <!-- [START getstarted] -->