Limit the deploy on master branch
diff --git a/.travis.yml b/.travis.yml
index 999288c..74cfb97 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@
   - mvn deploy -DskipTests -Prelease -Ppassphrase --settings .travis.settings.xml
  on:
   tags: true
-  all_branches: true
+  branch: master
  skip_cleanup: true
 
 env: