diff --git a/.mergify.yml b/.mergify.yml
index 198e109a7f..353764a2e0 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -327,3 +327,11 @@ 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"