diff --git a/.github/workflows/test_ws_codecov.yml b/.github/workflows/test_ws_codecov.yml
index 9a0c0ace..54c3c6a7 100644
--- a/.github/workflows/test_ws_codecov.yml
+++ b/.github/workflows/test_ws_codecov.yml
@@ -16,6 +16,7 @@ jobs:
     - uses: actions/checkout@v3
       with:
         repository: biothings/biothings_explorer
+        ref: ${{ steps.branch-name.outputs.current_branch }}
 
     - name: Use Node.js 18.x
       uses: actions/setup-node@v3
@@ -29,7 +30,6 @@ jobs:
 
     - name: pnpm install, generate coverage report
       run: |
-        git checkout ${{ steps.branch-name.outputs.current_branch }}
         pnpm run clone
         pnpm run git checkout ${{ steps.branch-name.outputs.current_branch }}
         pnpm i