diff --git a/.travis.yml b/.travis.yml
index 1e001fb..b5530f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,4 +4,4 @@ python:
 install:
   - pip install yamllint
 script:
-  - yamllint */*.yml
+  - git diff --name-only $TRAVIS_COMMIT_RANGE | xargs yamllint