diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 51d0bda..f9f5897 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -44,7 +44,7 @@ jobs:
         env:
           GROUP: ${{ matrix.group }}
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@v4
         with:
           file: lcov.info
   docs: