diff --git a/src/wp-includes/class-wp-theme.php b/src/wp-includes/class-wp-theme.php
index 5cf8f9437a..f9f93994e7 100644
--- a/src/wp-includes/class-wp-theme.php
+++ b/src/wp-includes/class-wp-theme.php
@@ -58,6 +58,7 @@ final class WP_Theme implements ArrayAccess {
 	 * @since 5.3.0 Added the Twenty Twenty theme.
 	 * @since 5.6.0 Added the Twenty Twenty-One theme.
 	 * @since 5.9.0 Added the Twenty Twenty-Two theme.
+	 * @since 6.1.0 Added the Twenty Twenty-Three theme.
 	 * @var string[]
 	 */
 	private static $default_themes = array(