diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index 8284b6a5e..dc9154dea 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -58,7 +58,7 @@
          if: matrix.os == 'windows-latest'
 
        - name: codecov
-         uses: codecov/codecov-action@v3
+         uses: codecov/codecov-action@v4
          with:
            token: ${{ secrets.CODECOV_TOKEN }}
            file: ./coverage.xml