diff --git a/README.md b/README.md
index 17123a5..4b19f60 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ switch_user is very useful in such use cases
 
 ## Example
 
-Visit here: <http://switch-user-example.heroku.com/admin>, switch the current user in the select box.
+Visit here: <http://switch-user-example.herokuapp.com/admin>, switch the current user in the select box.
 
 And source code here: <https://github.com/flyerhzm/switch_user_example>