diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 46fe385..0bf9474 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,6 +45,7 @@ jobs:
 
           go mod tidy
           git diff --exit-code go.mod  # must be up-to-date and tidied
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           file: ./cover.out
+          token: ${{ secrets.CODECOV_TOKEN }}