diff --git a/src/wp-content/themes/twentytwentythree/style.css b/src/wp-content/themes/twentytwentythree/style.css
index 5b49ceecc8..c5c42c8295 100644
--- a/src/wp-content/themes/twentytwentythree/style.css
+++ b/src/wp-content/themes/twentytwentythree/style.css
@@ -13,3 +13,6 @@ License URI: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 Text Domain: twentytwentythree
 Tags: one-column, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, block-patterns, rtl-language-support, sticky-post, threaded-comments, translation-ready, wide-blocks, block-styles, accessibility-ready, blog, portfolio, news
 */
+.wp-block-quote.is-style-default {
+	border-left: 1px solid currentColor;
+}