diff --git a/composer.json b/composer.json
index db3310e..ad77ee1 100644
--- a/composer.json
+++ b/composer.json
@@ -25,8 +25,9 @@
         "monolog/monolog": "^1.12|^2.0",
         "riverline/multipart-parser": "^2.0",
         "symfony/process": "^4.3|^5.0",
-        "symfony/psr-http-message-bridge": "^1.2",
-        "zendframework/zend-diactoros": "^2.1"
+        "laminas/laminas-diactoros": "^2.2",
+        "nyholm/psr7": "^1.0",
+        "symfony/psr-http-message-bridge": "^2.0"
     },
     "require-dev": {
         "mockery/mockery": "^1.2",
diff --git a/src/Runtime/Handlers/AppHandler.php b/src/Runtime/Handlers/AppHandler.php
index b4112c9..96bcbf0 100644
--- a/src/Runtime/Handlers/AppHandler.php
+++ b/src/Runtime/Handlers/AppHandler.php
@@ -12,8 +12,12 @@
 use Laravel\Vapor\Runtime\Http\PsrRequestFactory;
 use Laravel\Vapor\Runtime\PsrLambdaResponseFactory;
 use Illuminate\Console\Application as ConsoleApplication;
-use Symfony\Bridge\PsrHttpMessage\Factory\DiactorosFactory;
 use Symfony\Bridge\PsrHttpMessage\Factory\HttpFoundationFactory;
+use Symfony\Bridge\PsrHttpMessage\Factory\PsrHttpFactory;
+use Laminas\Diactoros\ResponseFactory;
+use Laminas\Diactoros\ServerRequestFactory;
+use Laminas\Diactoros\StreamFactory;
+use Laminas\Diactoros\UploadedFileFactory;
 
 class AppHandler implements LambdaEventHandler
 {
@@ -33,7 +37,12 @@ public function handle(array $event)
             ));
 
             return $this->marshalResponse(
-                (new DiactorosFactory)->createResponse($response)
+                (new PsrHttpFactory(
+                    new ServerRequestFactory,
+                    new StreamFactory,
+                    new UploadedFileFactory,
+                    new ResponseFactory
+                ))->createResponse($response)
             );
         } finally {
             if (isset($app)) {
@@ -57,7 +66,7 @@ protected function marshalRequest(array $event)
     /**
      * Marshal the PSR-7 response to a Lambda response.
      *
-     * @param  Psr\Http\Message\ResponseInterface  $response
+     * @param  \Psr\Http\Message\ResponseInterface  $response
      * @return \Laravel\Vapor\Runtime\ArrayLambdaResponse
      */
     protected function marshalResponse(ResponseInterface $response)
diff --git a/src/Runtime/Handlers/LoadBalancedAppHandler.php b/src/Runtime/Handlers/LoadBalancedAppHandler.php
index a40e434..6ca9599 100644
--- a/src/Runtime/Handlers/LoadBalancedAppHandler.php
+++ b/src/Runtime/Handlers/LoadBalancedAppHandler.php
@@ -21,7 +21,7 @@ protected function marshalRequest(array $event)
     /**
      * Marshal the PSR-7 response to a Lambda response.
      *
-     * @param  Psr\Http\Message\ResponseInterface  $response
+     * @param  \Psr\Http\Message\ResponseInterface  $response
      * @return \Laravel\Vapor\Runtime\ArrayLambdaResponse
      */
     protected function marshalResponse(ResponseInterface $response)