diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 85eb624..3af9546 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -30,9 +30,10 @@ jobs:
         run: |
           PYTHONPATH=src/ pytest tests/ --cov=relaxit --cov-report=xml
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v4
         with:
-          token: ${{secrets.CODECOV_TOKEN}}
+          files: ./coverage.out
+          # token: ${{secrets.CODECOV_TOKEN}}
           version: "v0.1.15"
           fail_ci_if_error: true
           verbose: true
diff --git a/.gitignore b/.gitignore
index 124abcc..60b7f2f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 __pycache__/
 *.py[cod]
 *$py.class
+codecov
 
 # C extensions
 *.so