diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 5b9dab8..77ae823 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -53,4 +53,4 @@ jobs:
         run: coverage xml
 
       - name: codecov.io
-        uses: codecov/codecov-action@v3.1.5
+        uses: codecov/codecov-action@v4.0.1