diff --git a/tests/PSR15MiddlewareTest.php b/tests/PSR15MiddlewareTest.php
index 0243f37..2ab8d95 100644
--- a/tests/PSR15MiddlewareTest.php
+++ b/tests/PSR15MiddlewareTest.php
@@ -7,7 +7,7 @@
 use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\ResponseInterface;
 use React\EventLoop\Factory;
-use React\Http\ServerRequest;
+use React\Http\Io\ServerRequest;
 use RingCentral\Psr7\Response;
 
 final class PSR15MiddlewareTest extends TestCase