diff --git a/package-lock.json b/package-lock.json
index f350de5..4bd1673 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
 	"name": "richtext-extension",
-	"version": "2.5.0",
+	"version": "2.6.0",
 	"lockfileVersion": 3,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "richtext-extension",
-			"version": "2.5.0",
+			"version": "2.6.0",
 			"license": "GPL-2.0-or-later",
 			"devDependencies": {
 				"@wordpress/base-styles": "5.1.0",
diff --git a/package.json b/package.json
index 7537714..6836948 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "richtext-extension",
-	"version": "2.5.0",
+	"version": "2.6.0",
 	"description": "WordPress plugin to add useful decoration features to the Gutenberg RichText editor toolbar.",
 	"author": "Aki Hamano",
 	"license": "GPL-2.0-or-later",
diff --git a/readme.txt b/readme.txt
index e472735..d655968 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,8 +3,8 @@ Contributors: wildworks
 Tags: gutenberg,rich text,highlighter,formatting
 Donate link: https://www.paypal.me/thamanoJP
 Requires at least: 6.4
-Tested up to: 6.5
-Stable tag: 2.5.0
+Tested up to: 6.6
+Stable tag: 2.6.0
 Requires PHP: 7.4
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
diff --git a/richtext-extension.php b/richtext-extension.php
index 90a74fd..727c931 100644
--- a/richtext-extension.php
+++ b/richtext-extension.php
@@ -4,7 +4,7 @@
  * Description: Adds useful decoration features to the Gutenberg RichText editor toolbar.
  * Requires at least: 6.4
  * Requires PHP: 7.4
- * Version: 2.5.0
+ * Version: 2.6.0
  * Author: Aki Hamano
  * Author URI: https://github.com/t-hamano
  * License: GPL2 or later