diff --git a/composer.json b/composer.json
index 17b68c8..46d59ef 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,8 @@
         }
     ],
     "require": {
-        "ratchet/rfc6455": "^0.3",
+        "guzzlehttp/psr7": "^1.7 || ^2.0",
+        "ratchet/rfc6455": "^0.3 || ^0.4",
         "react/http": "^1.0"
     },
     "require-dev":{
diff --git a/src/WebSocketMiddleware.php b/src/WebSocketMiddleware.php
index 1880b88..e925f7e 100644
--- a/src/WebSocketMiddleware.php
+++ b/src/WebSocketMiddleware.php
@@ -2,6 +2,7 @@
 
 namespace Voryx\WebSocketMiddleware;
 
+use GuzzleHttp\Psr7\HttpFactory;
 use Psr\Http\Message\ServerRequestInterface;
 use Ratchet\RFC6455\Handshake\PermessageDeflateOptions;
 use Ratchet\RFC6455\Handshake\RequestVerifier;
@@ -38,7 +39,11 @@ public function __invoke(ServerRequestInterface $request, callable $next = null)
             }
         }
 
-        $negotiator = new ServerNegotiator(new RequestVerifier(), $this->webSocketOptions->isPermessageDeflateEnabled());
+        if (self::isRFC6455v03()) {
+            $negotiator = new ServerNegotiator(new RequestVerifier(), $this->webSocketOptions->isPermessageDeflateEnabled());
+        } else {
+            $negotiator = new ServerNegotiator(new RequestVerifier(), new HttpFactory(), $this->webSocketOptions->isPermessageDeflateEnabled());
+        }
         $negotiator->setSupportedSubProtocols($this->subProtocols);
         $negotiator->setStrictSubProtocolCheck(true);
 
@@ -88,4 +93,9 @@ public function __invoke(ServerRequestInterface $request, callable $next = null)
 
         return $response;
     }
+
+    private static function isRFC6455v03() {
+        $reflection = new \ReflectionClass('Ratchet\RFC6455\Handshake\ServerNegotiator');
+        return $reflection->getMethod('__construct')->getNumberOfRequiredParameters() === 1;
+    }
 }