diff --git a/.travis.yml b/.travis.yml
index 536a3d6..1f74dbe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,4 +15,4 @@ install:
 # command to run tests
 script:
   - python -m pytest tests/
-  - pylint dsm/
+  - pylint --fail-under=9 dsm/