diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7d666396..10ea6d8d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -100,4 +100,7 @@ stop_review:
     extends: .stop_review
 
 nightly:
-  extends: '.publish_nightly'
\ No newline at end of file
+  extends: '.publish_nightly'
+  only:
+    refs:
+      - mainline