diff --git a/.mergify.yml b/.mergify.yml
index ab4df8f5e4df..497a28e0054c 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -428,3 +428,11 @@ pull_request_rules:
         labels:
           - "backport"
         title: "[{{ destination_branch }}](backport #{{ number }}) {{ title }}"
+  - name: backport patches to 9.1 branch
+    conditions:
+      - merged
+      - label=backport-9.1
+    actions:
+      backport:
+        branches:
+          - "9.1"