diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18d638a..8e0150c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 ChangeLog
 =========
 
+2.2.10 (2024-08-27)
+------------------
+* #290 add cs-fixer v3 (@phil-davis)
+
 2.2.9 (2024-07-26)
 ------------------
 * #287 Explicitly mark nullable parameter (@cedric-anne)
diff --git a/composer.json b/composer.json
index d0507e9..72cffb5 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,7 @@
         }
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "~2.17.1||3.60",
+        "friendsofphp/php-cs-fixer": "~2.17.1||^3.63",
         "phpstan/phpstan": "^0.12",
         "phpunit/phpunit" : "^7.5 || ^8.5 || ^9.6"
     },
diff --git a/lib/Version.php b/lib/Version.php
index 600a549..413db23 100644
--- a/lib/Version.php
+++ b/lib/Version.php
@@ -16,5 +16,5 @@ class Version
     /**
      * Full version number.
      */
-    public const VERSION = '2.2.9';
+    public const VERSION = '2.2.10';
 }
diff --git a/tests/Sabre/Xml/WriterTest.php b/tests/Sabre/Xml/WriterTest.php
index 33bd478..626f2ed 100644
--- a/tests/Sabre/Xml/WriterTest.php
+++ b/tests/Sabre/Xml/WriterTest.php
@@ -4,6 +4,8 @@
 
 namespace Sabre\Xml;
 
+use Sabre\Xml\Element\KeyValue;
+
 class WriterTest extends \PHPUnit\Framework\TestCase
 {
     protected $writer;
@@ -324,7 +326,7 @@ public function testWriteElement()
 
     public function testWriteElementComplex()
     {
-        $this->writer->writeElement('{http://sabredav.org/ns}foo', new Element\KeyValue(['{http://sabredav.org/ns}bar' => 'test']));
+        $this->writer->writeElement('{http://sabredav.org/ns}foo', new KeyValue(['{http://sabredav.org/ns}bar' => 'test']));
 
         $output = <<<HI
 <?xml version="1.0"?>