diff --git a/.drone.yml b/.drone.yml
index dc98daa..fa7a155 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -48,8 +48,8 @@ steps:
       - name: poetry_cache
         path: /root/.cache/pypoetry
     when:
-      branch:
-        - main
+      ref:
+        - refs/heads/main
 depends_on:
   - test
 volumes: