diff --git a/.github/workflows/UnitTests.yml b/.github/workflows/UnitTests.yml
index c8b50002f..887e7b083 100644
--- a/.github/workflows/UnitTests.yml
+++ b/.github/workflows/UnitTests.yml
@@ -71,8 +71,9 @@ jobs:
 
     - uses: julia-actions/julia-runtest@v1
     - uses: julia-actions/julia-processcoverage@v1
-    - uses: codecov/codecov-action@v3
+    - uses: codecov/codecov-action@v4
       with:
+        token: ${{ secrets.CODECOV_TOKEN }}
         files: lcov.info
     - uses: julia-actions/julia-uploadcoveralls@v1
       continue-on-error: true