diff --git a/circle.yml b/circle.yml
index 512fc1e..3b4ca05 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,5 +1,6 @@
 deployment:
   release:
+    branch: master
     commands:
       - echo "releasing by the tag"
     tag: /v\d+(\.\d+)*/