diff --git a/.github/workflows/sphinx_asdf_ci.yml b/.github/workflows/sphinx_asdf_ci.yml
index 4fce74f..bff5ef4 100644
--- a/.github/workflows/sphinx_asdf_ci.yml
+++ b/.github/workflows/sphinx_asdf_ci.yml
@@ -130,6 +130,6 @@ jobs:
         run: tox -e ${{ matrix.toxenv }}
       - name: Upload Code Coverage
         if: ${{ contains(matrix.toxenv,'coverage') }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./coverage.xml