diff --git a/composer.json b/composer.json
index 4326ec0e..23765512 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "require-dev": {
         "phpunit/phpunit": "^9.6",
         "mockery/mockery": "^1.6",
-        "friendsofphp/php-cs-fixer": "^3.23",
+        "friendsofphp/php-cs-fixer": "^3.27",
         "phpstan/phpstan": "^1.10",
         "rector/rector": "^0.17"
     },
diff --git a/src/System/Router/RouteDispatcher.php b/src/System/Router/RouteDispatcher.php
index 258eb728..10b441b2 100644
--- a/src/System/Router/RouteDispatcher.php
+++ b/src/System/Router/RouteDispatcher.php
@@ -214,7 +214,7 @@ private function dispatch($basepath = '', $case_matters = false, $trailing_slash
             $route['expression'] = '^' . $route['expression'];
 
             // Add 'find string end' automatically
-            $route['expression'] = $route['expression'] . '$';
+            $route['expression'] .= '$';
 
             // Check path match
             if (preg_match('#' . $route['expression'] . '#' . ($case_matters ? '' : 'i') . 'u', $path, $matches)) {