diff --git a/README.md b/README.md
index 9f500f9..33e1a02 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ heroku open
 
 Alternatively, you can deploy your own copy of the app using this button:
 
-[![Deploy to Heroku](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy)
+[![Deploy to Heroku](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy)
 
 ## Documentation