diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 7cf33d1..54f8c21 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -32,6 +32,6 @@ jobs:
         uses: korthout/backport-action@v4
         with:
           add_author_as_assignee: true
-          auto_merge_method: squash
+          auto_merge_method: "squash"
           pull_title: [${target_branch}] ${pull_title}
-          pull_description: "Automated cherry-pick of #${pull_number} to ${target_branch}."
\ No newline at end of file
+          pull_description: "Automated cherry-pick of #${pull_number} to ${target_branch}."