diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 1475feb72..6ae4602ca 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -51,4 +51,6 @@ jobs:
       run: |
         poetry run pytest --cov-report xml --cov=bayes_opt/
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
+      with:
+          token: ${{ secrets.CODECOV_TOKEN }}