diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 08878eb1..c2e5fc65 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,7 +42,7 @@ jobs:
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-runtest@latest
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v4
+      - uses: codecov/codecov-action@v4.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: false  # or true if you want CI to fail when Codecov fails