diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 29d0b94..1f537f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -68,7 +68,7 @@ jobs:
         run: pytest tests/ -v --tb=short --cov=landmarkdiff --cov-report=xml --cov-report=term-missing
       - name: Upload coverage
         if: matrix.python-version == '3.11'
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           files: coverage.xml
           token: ${{ secrets.CODECOV_TOKEN }}