diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 5e0410a..23c06b0 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -106,9 +106,11 @@ jobs:
           always() &&
           (steps.test.outcome == 'success' || steps.test.outcome == 'failure') &&
           (matrix.docker == false)
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
+          fail_ci_if_error: true
           flags: Python-${{ matrix.python }}-${{ runner.os }}
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   build:
     needs: