diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
index fc69e48..1c2d336 100644
--- a/.php-cs-fixer.php
+++ b/.php-cs-fixer.php
@@ -274,6 +274,12 @@
             ],
         ],
         // 'statement_indentation' => true,
+        'class_definition' => [
+            // 'multi_line_extends_each_single_line' => false,
+            // 'single_item_single_line' => false,
+            // 'single_line' => false,
+            // 'space_before_parenthesis' => false,
+        ],
 
         // https://github.com/kubawerlos/php-cs-fixer-custom-fixers
         PhpCsFixerCustomFixers\Fixer\CommentSurroundedBySpacesFixer::name() => true,
diff --git a/composer-updater b/composer-updater
index 5c12bbc..706fff9 100755
--- a/composer-updater
+++ b/composer-updater
@@ -40,7 +40,16 @@ $status = (new SingleCommandApplication())
         assert($this instanceof SingleCommandApplication);
         assert((bool) $input->getOption('highest-php-binary'));
 
-        (new class($input->getOption('composer-json-path') ?: __DIR__.'/composer.json', $input->getOption('highest-php-binary'), $input->getOption('composer-binary'), $input->getOption('except-packages'), $input->getOption('except-dependency-versions'), $input->getOption('dry-run'), new SymfonyStyle($input, $output), new Differ()) {
+        (new class(
+            $input->getOption('composer-json-path') ?: __DIR__.'/composer.json',
+            $input->getOption('highest-php-binary'),
+            $input->getOption('composer-binary'),
+            $input->getOption('except-packages'),
+            $input->getOption('except-dependency-versions'),
+            $input->getOption('dry-run'),
+            new SymfonyStyle($input, $output),
+            new Differ()
+        ) {
             private $composerJsonPath;
             private $composerJsonContents;
             private $highestComposerBinary;