diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0d3e93b..b0fbaf3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -68,10 +68,12 @@ jobs:
       run: poe check
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
       with:
         files: ./coverage.xml
         flags: unittests
         env_vars: OS,PYTHON
         name: codecov-umbrella
-        fail_ci_if_error: false
+        fail_ci_if_error: true