diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4d4780a5..8539c0a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
 
     - name: Test coverage with Codecov
       if: "runner.os != 'Windows' && matrix.python-version != 3.7"
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
     - name: Test docstrings with doctest
       if: "runner.os == 'Linux' && matrix.python-version == 3.11"