diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 10fdff1..2ba63c3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -48,6 +48,7 @@ jobs:
         run: |
           poetry run pytest --cov=check_done --cov-branch --cov-report=xml
       - name: Upload coverage reports to Codecov
+        if: ${{ matrix.python-version == env.MAIN_PYTHON_VERSION }}
         uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}