diff --git a/.asf.yaml b/.asf.yaml
index bc9528401..0c4f0276d 100644
--- a/.asf.yaml
+++ b/.asf.yaml
@@ -37,6 +37,9 @@ github:
         required_approving_review_count: 1
 
       required_linear_history: true
+  pull_requests:
+    # auto-delete head branches after being merged
+    del_branch_on_merge: true
   features:
     wiki: true
     issues: true