diff --git a/.github/workflows/test-pages-build.yml b/.github/workflows/test-pages-build.yml
index d052cd7f3..6f57b75ea 100644
--- a/.github/workflows/test-pages-build.yml
+++ b/.github/workflows/test-pages-build.yml
@@ -21,4 +21,4 @@ jobs:
         uses: rossjrw/pr-preview-action@v1
         with:
           source-dir: _site/
-          preview-branch: main
+          preview-branch: gh-pages