diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 4d662a6..f1de39c 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -33,7 +33,7 @@ jobs:
           echo "running unit tests with coverage"
           python -m pytest --cov=src --cov-report=xml --cov-report=term
       - name: upload coverage to codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         if:
           github.actor != 'dependabot[bot]'
         with: