diff --git a/.github/workflows/diagnostics.yml b/.github/workflows/diagnostics.yml
index 44a5c18..be3b7da 100644
--- a/.github/workflows/diagnostics.yml
+++ b/.github/workflows/diagnostics.yml
@@ -68,7 +68,7 @@ jobs:
         run: $GITHUB_WORKSPACE/vendor/bin/phpcq run -o github-action -o default ${{ matrix.phpcq_flags }} -v
 
       - name: Upload build directory to artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: phpcq-builds-php-${{ matrix.php }}