diff --git a/.travis.yml b/.travis.yml
index 6417276..1f156eb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,10 @@ d:
  # - dmd-nightly
  - ldc
  # - ldc-beta
+ 
+branches:
+  only:
+  - master
 
 before_install:
   - pyenv global system 3.6