diff --git a/.github/workflows/tester.yml b/.github/workflows/tester.yml
index ffb70c0..1c97a46 100644
--- a/.github/workflows/tester.yml
+++ b/.github/workflows/tester.yml
@@ -55,6 +55,8 @@ jobs:
         env:
           CI: true
       - name: Upload coverage report to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}