diff --git a/.travis.yml b/.travis.yml
index 2ab2e2b..59d5f5d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: node_js
 env:
   - SLIMERJSLAUNCHER=$(which firefox) DISPLAY=:99.0
+branches:
+  only:
+    - master
 node_js:
   - "7"
 addons: