diff --git a/composer.json b/composer.json
index e74345c..1608611 100755
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     "require": {
         "php": ">=8.1",
         "hyperf/codec": "~3.1.0",
-        "hyperf/engine": "^2.7",
+        "hyperf/engine": "^2.11",
         "hyperf/support": "~3.1.0",
         "laminas/laminas-mime": "^2.7",
         "psr/http-message": "^1.0|^2.0",
diff --git a/src/Base/Request.php b/src/Base/Request.php
index a530a72..81e3d5c 100755
--- a/src/Base/Request.php
+++ b/src/Base/Request.php
@@ -12,6 +12,7 @@
 
 namespace Hyperf\HttpMessage\Base;
 
+use Hyperf\Engine\Http\Http;
 use Hyperf\HttpMessage\Stream\SwooleStream;
 use Hyperf\HttpMessage\Uri\Uri;
 use InvalidArgumentException;
@@ -245,20 +246,12 @@ public function setRequestTarget(string $requestTarget): static
 
     public function toString(bool $withoutBody = false): string
     {
-        $headerString = '';
-        foreach ($this->getStandardHeaders() as $key => $values) {
-            foreach ($values as $value) {
-                $headerString .= sprintf("%s: %s\r\n", $key, $value);
-            }
-        }
-
-        return sprintf(
-            "%s %s HTTP/%s\r\n%s\r\n%s",
+        return Http::packRequest(
             $this->getMethod(),
             $this->getUri()->getPath(),
-            $this->getProtocolVersion(),
-            $headerString,
-            $withoutBody ? '' : $this->getBody()
+            $this->getStandardHeaders(),
+            $withoutBody ? '' : (string) $this->getBody(),
+            $this->getProtocolVersion()
         );
     }
 
diff --git a/src/Base/Response.php b/src/Base/Response.php
index 798f1e1..b989772 100755
--- a/src/Base/Response.php
+++ b/src/Base/Response.php
@@ -12,6 +12,7 @@
 
 namespace Hyperf\HttpMessage\Base;
 
+use Hyperf\Engine\Http\Http;
 use InvalidArgumentException;
 use Psr\Http\Message\ResponseInterface;
 use Stringable;
@@ -342,19 +343,12 @@ public function isEmpty(): bool
 
     public function toString(bool $withoutBody = false): string
     {
-        $headerString = '';
-        foreach ($this->getStandardHeaders() as $key => $values) {
-            foreach ($values as $value) {
-                $headerString .= sprintf("%s: %s\r\n", $key, $value);
-            }
-        }
-        return sprintf(
-            "HTTP/%s %s %s\r\n%s\r\n%s",
-            $this->getProtocolVersion(),
+        return Http::packResponse(
             $this->getStatusCode(),
             $this->getReasonPhrase(),
-            $headerString,
-            $withoutBody ? '' : $this->getBody()
+            $this->getStandardHeaders(),
+            $withoutBody ? '' : (string) $this->getBody(),
+            $this->getProtocolVersion()
         );
     }
 
diff --git a/tests/ResponseTest.php b/tests/ResponseTest.php
index 38e99ed..b467552 100644
--- a/tests/ResponseTest.php
+++ b/tests/ResponseTest.php
@@ -15,8 +15,10 @@
 use Hyperf\Codec\Json;
 use Hyperf\Engine\Http\WritableConnection;
 use Hyperf\HttpMessage\Cookie\Cookie;
+use Hyperf\HttpMessage\Server\Request;
 use Hyperf\HttpMessage\Server\Response;
 use Hyperf\HttpMessage\Stream\SwooleStream;
+use Hyperf\HttpMessage\Uri\Uri;
 use Mockery;
 use PHPUnit\Framework\Attributes\CoversNothing;
 use PHPUnit\Framework\TestCase;
@@ -73,7 +75,7 @@ public function testWrite()
         $this->assertTrue($status);
     }
 
-    public function testToString()
+    public function testToResponseString()
     {
         $response = $this->newResponse();
         if (! $response instanceof ResponsePlusInterface) {
@@ -95,6 +97,25 @@ public function testToString()
 ", $response->toString(true));
     }
 
+    public function testToRequestString()
+    {
+        $request = new Request('GET', new Uri('https://www.baidu.com/'), body: 'q=Hyperf');
+
+        $this->assertSame("GET / HTTP/1.1\r
+host: www.baidu.com\r
+Connection: close\r
+Content-Length: 8\r
+\r
+q=Hyperf", $request->toString());
+
+        $this->assertSame("GET / HTTP/1.1\r
+host: www.baidu.com\r
+Connection: close\r
+Content-Length: 8\r
+\r
+", $request->toString(true));
+    }
+
     protected function newResponse()
     {
         return new Response();
diff --git a/tests/ServerRequestTest.php b/tests/ServerRequestTest.php
index 000284e..c276a4c 100644
--- a/tests/ServerRequestTest.php
+++ b/tests/ServerRequestTest.php
@@ -40,10 +40,6 @@
  * @coversNothing
  */
 #[CoversNothing]
-/**
- * @internal
- * @coversNothing
- */
 class ServerRequestTest extends TestCase
 {
     protected function tearDown(): void