diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 2f5e478..adc133f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -37,9 +37,10 @@ jobs:
       - uses: julia-actions/julia-runtest@latest
       - uses: julia-actions/julia-processcoverage@latest
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
 
       - uses: coverallsapp/github-action@main
         with: