diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a4f4553..6097766 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ jobs:
           AOC_SESSION: ${{ secrets.AOC_SESSION }}
         run: pytest --cov=./ --cov-report=xml --mypy --pylint --pylint-ignore-patterns '.*year201[89].*'
       - name: upload code coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: coverage.xml
           verbose: true