diff --git a/.travis.yml b/.travis.yml
index 0ea8f993..2536a6ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,7 @@ branches:
   only:
   - master
   - /^[0-9]+.[0-9]+.[0-9]+(-.*)?$/
+  - 3.x
   - /^greenkeeper/.*$/
 cache:
   directories: