diff --git a/src/Server/StandardServer.php b/src/Server/StandardServer.php
index 9684205..2ea4480 100644
--- a/src/Server/StandardServer.php
+++ b/src/Server/StandardServer.php
@@ -5,7 +5,7 @@ use GraphQL\Error\FormattedError;
 use GraphQL\Error\InvariantViolation;
 use GraphQL\Executor\ExecutionResult;
 use GraphQL\Executor\Promise\Promise;
-use GraphQL\Utils;
+use GraphQL\Utils\Utils;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Message\StreamInterface;