diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f0fffc2..a00ee78 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -63,6 +63,7 @@ jobs:
         run: python3 -m pytest -s
 
       - name: Upload code coverage
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@125fc84a9a348dbcf27191600683ec096ec9021c #v4.4.1
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.xml