diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 59f5414..342a521 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -25,6 +25,8 @@ jobs:
 
     - name: Commit to deployment branch
       run: |
+        git fetch
+        git checkout --orphan deployment
         git add index.json
         git commit -m 'Auto-generate index.json'
         git push --force origin deployment