diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1b70d5d..d4979cd 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -68,7 +68,7 @@ jobs:
           pytest --cov=pyspectral pyspectral/tests --cov-report=xml
 
       - name: Upload unittest coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           flags: unittests
           file: ./coverage.xml