diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 34a5391..11113f0 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -38,7 +38,7 @@ jobs:
         env:
           GKSwstype: "100" # for Plots/GR
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           file: lcov.info
       # The standard setup of Coveralls is just annoying for parallel builds, see, e.g.,