diff --git a/flextype/bootstrap.php b/flextype/bootstrap.php
index ace8711c..f22ea26b 100755
--- a/flextype/bootstrap.php
+++ b/flextype/bootstrap.php
@@ -17,8 +17,8 @@ use Flextype\Component\ErrorHandler\ErrorHandler;
 use Flextype\Component\Registry\Registry;
 use Flextype\Component\Filesystem\Filesystem;
 use Thunder\Shortcode\ShortcodeFacade;
-use Slim\Http\Request;
-use Slim\Http\Response;
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
 use Slim\Flash\Messages;
 use League\Glide\ServerFactory;
 use League\Glide\Responses\SlimResponseFactory;