diff --git a/.github/workflows/ci_testing.yml b/.github/workflows/ci_testing.yml
index 4def207f22e3acb77f5be0fabf5e33c4bcc9b275..90fa81286eab4d55004e74ce29ea8ade4d14db94 100644
--- a/.github/workflows/ci_testing.yml
+++ b/.github/workflows/ci_testing.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Build Website
         run: |
           mkdocs build
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: site
           path: site/