diff --git a/readme.txt b/readme.txt
index 0438905..ef3b5c6 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link:       http://10up.com/plugins/simple-page-ordering-wordpress/
 Tags:              order, re-order, ordering, pages, page, manage, menu_order, hierarchical, ajax, drag-and-drop, admin
 Requires at least: 5.7
 Requires PHP:      7.4
-Tested up to:      6.3
+Tested up to:      6.4
 Stable tag:        2.6.0
 License:           GPLv2 or later
 License URI:       http://www.gnu.org/licenses/gpl-2.0.html