Update JsonRPC library

vendor/JsonRPC/Client.php

@@ -88,8 +88,13 @@ class Client
      * @param  array    $params   Procedure arguments
      * @return mixed
      */
-    public function __call($method, $params)
+    public function __call($method, array $params)
     {
+        // Allow to pass an array and use named arguments
+        if (count($params) === 1 && is_array($params[0])) {
+            $params = $params[0];
+        }
+
         return $this->execute($method, $params);
     }