diff --git a/.github/workflows/test_suite.yaml b/.github/workflows/test_suite.yaml
index 6d290ce..4ed9623 100644
--- a/.github/workflows/test_suite.yaml
+++ b/.github/workflows/test_suite.yaml
@@ -41,7 +41,7 @@ jobs:
       - name: Run Tests
         run: |
           python -m pytest --cov=hmf --cov-config=.coveragerc --cov-report xml:./coverage.xml --durations=25
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         if: matrix.os == 'ubuntu-latest' && success() && !contains(github.event.pull_request.labels.*.name, 'auto-pr')
         with:
           file: ./coverage.xml # optional
diff --git a/.github/workflows/warnings-tests.yaml b/.github/workflows/warnings-tests.yaml
index 3dbd0e7..fa2a9e8 100644
--- a/.github/workflows/warnings-tests.yaml
+++ b/.github/workflows/warnings-tests.yaml
@@ -40,7 +40,7 @@ jobs:
       - name: Run Tests
         run: |
           python -m pytest -Werror --cov=hmf --cov-config=.coveragerc --cov-report xml:./coverage.xml --durations=25
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         if: matrix.os == 'ubuntu-latest' && success()
         with:
           file: ./coverage.xml # optional