diff --git a/tests/CommandTest.php b/tests/CommandTest.php
index fe050948..630eee8d 100644
--- a/tests/CommandTest.php
+++ b/tests/CommandTest.php
@@ -13,13 +13,9 @@
 use Yiisoft\Db\Exception\NotSupportedException;
 use Yiisoft\Db\Expression\Expression;
 use Yiisoft\Db\Mssql\Column;
-use Yiisoft\Db\Mssql\Connection;
-use Yiisoft\Db\Mssql\Dsn;
-use Yiisoft\Db\Mssql\Driver;
 use Yiisoft\Db\Mssql\Tests\Support\TestTrait;
 use Yiisoft\Db\Query\Query;
 use Yiisoft\Db\Tests\Common\CommonCommandTest;
-use Yiisoft\Db\Tests\Support\DbHelper;
 
 use function trim;