diff --git a/.travis.yml b/.travis.yml
index 1b5eec231..a85e07cfc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,10 @@ language: python
 python:
   - "2.7"
 #  - "3.3"
+# whitelist
+branches:
+  only:
+    - master
 # command to install dependencies
 install:
   - pip install -r requirements.txt --use-mirrors