diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index 316bf86..a88b715 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -30,4 +30,4 @@ jobs:
       run: |
         pytest --durations=0 --cov=./
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4