diff --git a/composer.json b/composer.json
index f704a7ee..3793571c 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
     "psr-4": {
       "Kiri\\": "core/",
       "Http\\": "http-helper/",
-      "Http\\Message\\": "http-message/",
+      "Protocol\\Message\\": "http-message/",
       "Server\\": "http-server/",
       "Console\\": "kiri-console/",
       "Gii\\": "kiri-gii/",
diff --git a/http-message/Message.php b/http-message/Message.php
index a968bf45..0c30d07e 100644
--- a/http-message/Message.php
+++ b/http-message/Message.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use JetBrains\PhpStorm\Pure;
 use Kiri\Core\Xml;
diff --git a/http-message/Parse.php b/http-message/Parse.php
index c52f7785..6692e4ce 100644
--- a/http-message/Parse.php
+++ b/http-message/Parse.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use Kiri\Core\Xml;
 
diff --git a/http-message/Request.php b/http-message/Request.php
index cf59346d..69ed02cc 100644
--- a/http-message/Request.php
+++ b/http-message/Request.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use BadMethodCallException;
 use Http\IInterface\AuthIdentity;
diff --git a/http-message/Response.php b/http-message/Response.php
index 9d1dcd1e..f4d8e0ce 100644
--- a/http-message/Response.php
+++ b/http-message/Response.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use JetBrains\PhpStorm\Pure;
 use Psr\Http\Message\ResponseInterface;
diff --git a/http-message/ServerRequest.php b/http-message/ServerRequest.php
index 29053b17..7e8f04bb 100644
--- a/http-message/ServerRequest.php
+++ b/http-message/ServerRequest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use Http\Context\Context;
 use Psr\Http\Message\ServerRequestInterface;
diff --git a/http-message/Stream.php b/http-message/Stream.php
index eaba9a61..bdac939b 100644
--- a/http-message/Stream.php
+++ b/http-message/Stream.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use JetBrains\PhpStorm\ArrayShape;
 use Psr\Http\Message\StreamInterface;
diff --git a/http-message/Uploaded.php b/http-message/Uploaded.php
index 55de1195..010a4eb8 100644
--- a/http-message/Uploaded.php
+++ b/http-message/Uploaded.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use Psr\Http\Message\StreamInterface;
 use Psr\Http\Message\UploadedFileInterface;
diff --git a/http-message/Uri.php b/http-message/Uri.php
index 9442fdf9..7d53a7a5 100644
--- a/http-message/Uri.php
+++ b/http-message/Uri.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Protocol\Message;
 
 use Psr\Http\Message\UriInterface;
 use Swoole\Http\Request;