diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6c1dfa6..aed5681 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -57,6 +57,6 @@ jobs:
                  coverage run -m unittest && coverage json ;
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
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