diff --git a/.github/workflows/publish-book.yaml b/.github/workflows/publish-book.yaml
index 2e8fc19d6..71a5ee208 100644
--- a/.github/workflows/publish-book.yaml
+++ b/.github/workflows/publish-book.yaml
@@ -16,5 +16,3 @@ jobs:
   deploy:
     needs: build
     uses: ProjectPythia/cookbook-actions/.github/workflows/deploy-book.yaml@main
-    with:
-      cname: foundations.projectpythia.org
diff --git a/.github/workflows/trigger-preview.yaml b/.github/workflows/trigger-preview.yaml
index ba78c8e79..049b5d0bd 100644
--- a/.github/workflows/trigger-preview.yaml
+++ b/.github/workflows/trigger-preview.yaml
@@ -18,7 +18,6 @@ jobs:
       artifact_name: book-zip-${{ needs.find-pull-request.outputs.number }}
       destination_dir: _preview/${{ needs.find-pull-request.outputs.number }} # deploy to subdirectory labeled with PR number
       is_preview: "true"
-      cname: foundations.projectpythia.org
 
   preview-comment:
     needs: find-pull-request