diff --git a/.travis.yml b/.travis.yml
index 1caef3a..2c8cf2a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,7 +40,7 @@ matrix:
 branches:
   only:
   - master
-  - "/^stable\\d+(\\.\\d+)?$/"
+  - "/^stable\\d+(\\.\\d+)?+(\\.\\d+)?$/"
   - /^v\d++(\.\d+)?+(\.\d+)?+(\.\d+)?$/
 
 cache: