diff --git a/.github/workflows/runtests.yml b/.github/workflows/runtests.yml
index f2791d7..8f53a34 100644
--- a/.github/workflows/runtests.yml
+++ b/.github/workflows/runtests.yml
@@ -51,7 +51,7 @@ jobs:
 
 #     - name: "Cover"
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         if: ${{ matrix.version == '1' && matrix.os == 'ubuntu-latest' }}
         with:
           file: lcov.info