diff --git a/.github/workflows/main-tests.yml b/.github/workflows/main-tests.yml
index c371e105..46097f21 100644
--- a/.github/workflows/main-tests.yml
+++ b/.github/workflows/main-tests.yml
@@ -31,7 +31,7 @@ jobs:
         env:
           PYTHON: ""
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v4
         with:
           file: ./lcov.info
           flags: unittests
diff --git a/.github/workflows/pr_testing.yml b/.github/workflows/pr_testing.yml
index f1d405d3..c7d37a2c 100644
--- a/.github/workflows/pr_testing.yml
+++ b/.github/workflows/pr_testing.yml
@@ -27,7 +27,7 @@ jobs:
         env:
           PYTHON: ""
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v4
         with:
           file: ./lcov.info
           flags: unittests