diff --git a/.travis.yml b/.travis.yml
index 9c3a39f..aaed16a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,2 +1,8 @@
 language: dart
+dart:
+  - dev
 script: ./tool/travis.sh
+
+branches:
+  only:
+    - master