diff --git a/Controller/SoapWebServiceController.php b/Controller/SoapWebServiceController.php
index 29d08c3..3a3514a 100644
--- a/Controller/SoapWebServiceController.php
+++ b/Controller/SoapWebServiceController.php
@@ -16,10 +16,10 @@
 use BeSimple\SoapBundle\Soap\SoapRequest;
 use BeSimple\SoapBundle\Soap\SoapResponse;
 use BeSimple\SoapServer\SoapServerBuilder;
-use Symfony\Component\DependencyInjection\ContainerAware;
+use Symfony\Component\DependencyInjection\ContainerAwareTrait;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\Exception\FlattenException;
+use Symfony\Component\Debug\Exception\FlattenException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;
@@ -28,8 +28,10 @@
  * @author Christian Kerl <christian-kerl@web.de>
  * @author Francis Besset <francis.besset@gmail.com>
  */
-class SoapWebServiceController extends ContainerAware
+class SoapWebServiceController
 {
+    use ContainerAwareTrait;
+
     /**
      * @var \SoapServer
      */