diff --git a/.php_cs b/.php_cs
index ffcbf7e..27cee73 100644
--- a/.php_cs
+++ b/.php_cs
@@ -20,6 +20,7 @@ return PhpCsFixer\Config::create()
                 'phpdoc_no_empty_return' => false,
                 'phpdoc_order' => true,
                 'pre_increment' => false,
+                'single_trait_insert_per_statement' => false,
                 'yoda_style' => false,
             ])
             ->setFinder($finder);
diff --git a/composer.json b/composer.json
index dca52c6..750992d 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "socialiteproviders/manager": "^3.3"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "~2.9",
+        "friendsofphp/php-cs-fixer": "^2.15",
         "mockery/mockery": "^1.2",
         "phpunit/phpunit": "^7.5 || ^8.0"
     },