diff --git a/.github/workflows/check-for-updates.yml b/.github/workflows/check-for-updates.yml
index 3f81bfa..4126a49 100644
--- a/.github/workflows/check-for-updates.yml
+++ b/.github/workflows/check-for-updates.yml
@@ -16,7 +16,9 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          PR_EXISTS=$(gh pr list --search "Update tzdata to version" --json number --jq '.[] | .number')
+          PR_EXISTS=$(gh pr --repo $GITHUB_REPOSITORY \
+                      list --search "Update tzdata to version" \
+                      --json number --jq '.[] | .number')
           if [ -n "$PR_EXISTS" ]; then
           echo "A PR updating the tzdata version already exists, see http://github.com/python/tzdata/pulls/${PR_EXISTS}"
             exit 0