diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 5565fe3..e52346e 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -31,7 +31,7 @@ jobs:
           echo "running unit tests"
           python -m pytest --cov=src --cov-report=xml --cov-report=term-missing tests/
       - name: upload coverage to codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         if:
           github.actor != 'dependabot[bot]'
         with: