diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 2cd74d7..34e2967 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -27,6 +27,6 @@ jobs:
       - name: run tests
         run: bundle exec rspec
       - name: upload code coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}