diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c85e963f..9296b87d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -75,11 +75,18 @@ jobs:
         # pytest -s -v tests/synthetic/test_fourier_coefficients.py --cov=./ --cov-report=xml --cov=aurora
         pytest -s -v --cov=./ --cov-report=xml --cov=aurora
 
-    - name: "Upload coverage to Codecov"
-      uses: codecov/codecov-action@v1
+  - name: Upload coverage reports to Codecov
+      uses: codecov/codecov-action@v4
       with:
+        token: ${{ secrets.CODECOV_TOKEN }}
         fail_ci_if_error: false
 
+# Old codecov upload - can be deleted once new is working
+#    - name: "Upload coverage to Codecov"
+#      uses: codecov/codecov-action@v1
+#      with:
+#        fail_ci_if_error: false
+
     - name: Build Doc
       if: ${{ (github.ref == 'refs/heads/main') && (matrix.python-version == '3.8')}}
       run: |