diff --git a/.github/workflows/buildtest.yaml b/.github/workflows/buildtest.yaml
index b97747c7..26d585ec 100644
--- a/.github/workflows/buildtest.yaml
+++ b/.github/workflows/buildtest.yaml
@@ -27,7 +27,7 @@ jobs:
           directory: ./TestResults
           files: '*.cobertura.xml'
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: test-results-${{ matrix.os }}
           path: ./TestResults