diff --git a/.github/workflows/cypress.yml b/.github/workflows/cypress.yml
index 679967d..a6cb278 100644
--- a/.github/workflows/cypress.yml
+++ b/.github/workflows/cypress.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         core:
           - {name: 'WP latest', version: 'latest'}
-          - {name: 'WP minimum', version: 'WordPress/WordPress#6.3'}
+          - {name: 'WP minimum', version: 'WordPress/WordPress#6.4'}
           - {name: 'WP trunk', version: 'WordPress/WordPress#master'}
     steps:
     - name: Checkout
diff --git a/readme.txt b/readme.txt
index 7011f1c..abdee24 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,7 +2,7 @@
 Contributors:      10up, jakemgold, welcher, helen, thinkoomph, jeffpaul
 Donate link:       http://10up.com/plugins/simple-page-ordering-wordpress/
 Tags:              order, re-order, ordering, page, menu_order
-Tested up to:      6.5
+Tested up to:      6.6
 Stable tag:        2.7.1
 License:           GPLv2 or later
 License URI:       http://www.gnu.org/licenses/gpl-2.0.html
diff --git a/simple-page-ordering.php b/simple-page-ordering.php
index 5a52b55..74cd390 100644
--- a/simple-page-ordering.php
+++ b/simple-page-ordering.php
@@ -4,7 +4,7 @@
  * Plugin URI:        http://10up.com/plugins/simple-page-ordering-wordpress/
  * Description:       Order your pages and hierarchical post types using drag and drop on the built in page list. For further instructions, open the "Help" tab on the Pages screen.
  * Version:           2.7.1
- * Requires at least: 6.3
+ * Requires at least: 6.4
  * Requires PHP:      7.4
  * Author:            10up
  * Author URI:        https://10up.com