diff --git a/src/DependencyInjection/PrestaSitemapExtension.php b/src/DependencyInjection/PrestaSitemapExtension.php
index c6cc77d..cc39365 100644
--- a/src/DependencyInjection/PrestaSitemapExtension.php
+++ b/src/DependencyInjection/PrestaSitemapExtension.php
@@ -11,12 +11,10 @@
 
 namespace Presta\SitemapBundle\DependencyInjection;
 
-use Presta\SitemapBundle\Event\SitemapAddUrlEvent;
-use Presta\SitemapBundle\Event\SitemapPopulateEvent;
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 use Symfony\Component\DependencyInjection\Loader;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 use Symfony\Component\Messenger\MessageBusInterface;
 
 /**