diff --git a/.travis.yml b/.travis.yml
index 8ff8b12..6862e64 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,11 @@ php:
   - hhvm
   - nightly
 
+branches:
+  only:
+    - master
+    - gh-pages
+
 script:
   - find . -type f -name '*.php' -print0 | xargs -0 -I file php -l file > /dev/null