diff --git a/.github/workflows/update-lock.yml b/.github/workflows/update-lock.yml
index 7908770..137e479 100644
--- a/.github/workflows/update-lock.yml
+++ b/.github/workflows/update-lock.yml
@@ -57,7 +57,7 @@ jobs:
           GH_TOKEN: ${{ github.token }}
         run: |
           if ! git diff --color=always --exit-code origin/main; then
-            git fetch origin foo || true
+            git fetch origin "$PR_BRANCH" || true
             git push --force-with-lease -u origin "$PR_BRANCH"
 
             open_prs="$(gh pr list --base main --head "$PR_BRANCH" | wc -l)"