diff --git a/.travis.yml b/.travis.yml
index 09841252..a478357b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,3 +32,7 @@ script:
   - nosetests --with-timer --exclude=^test_examples --with-coverage --cover-package=zipline --timer-top-n=15
 after_success:
   - coveralls
+
+branches:
+  only:
+    - master