diff --git a/.github/workflows/cypress.yml b/.github/workflows/cypress.yml
index 5e957aa..60faf6d 100644
--- a/.github/workflows/cypress.yml
+++ b/.github/workflows/cypress.yml
@@ -17,7 +17,7 @@ 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 951b6d5..d255604 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Do you miss the days of filling up your computer's harddrive with MP3 files, bur
 ## Requirements
 
 * PHP >=7.4
-* [WordPress](http://wordpress.org/) >=6.1
+* [WordPress](http://wordpress.org/) >=6.4
 
 ## Installation
 
diff --git a/readme.txt b/readme.txt
index 540cc2b..285d4f8 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,7 +1,7 @@
 === Retro Winamp Block ===
 Contributors:      10up, dinhtungdu, fabiankaegy, dkotter, melchoyce, jeffpaul
 Tags:              winamp, webamp, mp3, music, audio, player, playlist, equalizer, block
-Tested up to:      6.5
+Tested up to:      6.6
 Stable tag:        1.3.2
 License:           GPLv2 or later
 License URI:       https://www.gnu.org/licenses/gpl-2.0.html
diff --git a/retro-webamp-block.php b/retro-webamp-block.php
index 18c3904..bd3929c 100644
--- a/retro-webamp-block.php
+++ b/retro-webamp-block.php
@@ -4,7 +4,7 @@
  * Plugin URI:        https://wordpress.org/plugins/retro-winamp-block/
  * Description:       A Winamp-styled audio block for all your retro music player needs.
  * Version:           1.3.2
- * Requires at least: 6.3
+ * Requires at least: 6.4
  * Requires PHP:      7.4
  * Author:            10up
  * Author URI:        https://10up.com