diff --git a/.github/workflows/cypress.yml b/.github/workflows/cypress.yml
index 11f51eee..863ad91d 100644
--- a/.github/workflows/cypress.yml
+++ b/.github/workflows/cypress.yml
@@ -21,7 +21,7 @@ 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.md b/README.md
index 5490ef0d..3e2487fb 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ For more details on configuring a Microsoft Azure Storage account and on using t
 ## Requirements
 
 * PHP 8.0+ (For PHP 7.4 support you need to use 4.3.5)
-* [WordPress](http://wordpress.org/) 5.7+
+* [WordPress](http://wordpress.org/) 6.4+
 
 ## Installation
 
diff --git a/readme.txt b/readme.txt
index 3e086601..64035793 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,7 +1,7 @@
 === Microsoft Azure Storage for WordPress ===
 Contributors:      msopentech, 10up, morganestes, stevegrunwell, lpawlik, ritteshpatel, johnwatkins0, rickalee, eflorea, phyrax, ravichandra, jeffpaul
 Tags:              Microsoft Azure Storage, Media Files, Upload, CDN, blob storage
-Tested up to:      6.5
+Tested up to:      6.6
 Stable tag:        4.5.0
 License:           BSD 2-Clause
 License URI:       http://www.opensource.org/licenses/bsd-license.php
diff --git a/windows-azure-storage.php b/windows-azure-storage.php
index 1806f597..fe62f00d 100644
--- a/windows-azure-storage.php
+++ b/windows-azure-storage.php
@@ -4,7 +4,7 @@
  * Plugin URI:        https://wordpress.org/plugins/windows-azure-storage/
  * Description:       Use the Microsoft Azure Storage service to host your website's media files.
  * Version:           4.5.0
- * Requires at least: 6.3
+ * Requires at least: 6.4
  * Requires PHP:      8.0
  * Author:            10up, Microsoft Open Technologies
  * Author URI:        https://10up.com/