diff --git a/http-server/Constrict/DownloadEmitter.php b/http-server/Constrict/DownloadEmitter.php
index 261a8e0d..d3c10ae1 100644
--- a/http-server/Constrict/DownloadEmitter.php
+++ b/http-server/Constrict/DownloadEmitter.php
@@ -5,7 +5,7 @@ namespace Server\Constrict;
 
 use Kiri\Exception\NotFindClassException;
 use ReflectionException;
-use Server\ResponseInterface;
+use Psr\Http\Message\ResponseInterface;
 
 /**
  *