diff --git a/.github/workflows/delete_backport_branch.yml b/.github/workflows/delete_backport_branch.yml
deleted file mode 100644
index 387a124b8c..0000000000
--- a/.github/workflows/delete_backport_branch.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: Delete merged branch of the backport PRs
-on: 
-  pull_request:
-    types:
-      - closed
-  
-jobs:
-  delete-branch:
-    runs-on: ubuntu-latest
-    if: startsWith(github.event.pull_request.head.ref,'backport/')
-    steps:
-      - name: Delete merged branch
-        uses: SvanBoxel/delete-merged-branch@main
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/delete_merged_branch.yml b/.github/workflows/delete_merged_branch.yml
index b95fc11722..8972c1144a 100644
--- a/.github/workflows/delete_merged_branch.yml
+++ b/.github/workflows/delete_merged_branch.yml
@@ -7,7 +7,12 @@ on:
 jobs:
   delete-branch:
     runs-on: ubuntu-latest
-    if: startsWith(github.event.pull_request.head.repo.full_name, 'opensearch-project/documentation-website')
+    if: |
+      startsWith(github.event.pull_request.head.repo.full_name, 'opensearch-project/documentation-website') &&
+      startsWith(! github.event.pull_request.head.ref, 'main') &&
+      startsWith(! github.event.pull_request.head.ref, '1.') &&
+      startsWith(! github.event.pull_request.head.ref, '2.') &&
+      startsWith(! github.event.pull_request.head.ref, 'version/')
     steps:
       - name: Echo remove branch
         run: echo Removing ${{github.event.pull_request.head.ref}}