--- a/testing/geckodriver/README.md
+++ b/testing/geckodriver/README.md
@@ -1,9 +1,9 @@
-# geckodriver [![Build Status](https://travis-ci.org/mozilla/geckodriver.svg?branch=master)](https://travis-ci.org/mozilla/geckodriver)
+# geckodriver [![Build Status](https://travis-ci.org/mozilla/geckodriver.svg?branch=release)](https://travis-ci.org/mozilla/geckodriver)
 
 Proxy for using W3C WebDriver-compatible clients
 to interact with Gecko-based browsers.
 
 This program provides the HTTP API described by
 the [WebDriver protocol](http://w3c.github.io/webdriver/webdriver-spec.html#protocol)
 to communicate with Gecko browsers, such as Firefox.
 It translates calls into