diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index efd093c..7e165e6 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -100,7 +100,7 @@ jobs:
       ## [stable] Upload coverage to codecov.io
       - name: stable | Upload coverage
         if: ${{ matrix.toolchain == 'stable' }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: lcov.info