diff --git a/tests/Debug/RouterCollectorTest.php b/tests/Debug/RouterCollectorTest.php
index ba8b78c..c24266c 100644
--- a/tests/Debug/RouterCollectorTest.php
+++ b/tests/Debug/RouterCollectorTest.php
@@ -12,7 +12,6 @@
 use Yiisoft\Router\Builder\RouteBuilder;
 use Yiisoft\Router\CurrentRoute;
 use Yiisoft\Router\Debug\RouterCollector;
-use Yiisoft\Router\Group;
 use Yiisoft\Router\MatchingResult;
 use Yiisoft\Router\Route;
 use Yiisoft\Router\RouteCollection;