diff --git a/lib/Requests/Mail/MailSet.php b/lib/Requests/Mail/MailSet.php
index 61df445..23e1de5 100644
--- a/lib/Requests/Mail/MailSet.php
+++ b/lib/Requests/Mail/MailSet.php
@@ -39,7 +39,7 @@ public function create(string $id, mixed $object = null): MailParameters
      * @param MailParameters|null $object Email parameters object
      * @return MailParameters The email parameters for method chaining
      */
-    public function update(string $id, mixed $object = null): MailParameters
+    public function update(string $id, mixed $object = null): MailParameters|stdClass
     {
         return parent::update($id, $object);
     }
diff --git a/lib/Requests/RequestSet.php b/lib/Requests/RequestSet.php
index 9c4246b..fd0860f 100644
--- a/lib/Requests/RequestSet.php
+++ b/lib/Requests/RequestSet.php
@@ -66,13 +66,13 @@ public function create(string $id, mixed $object = null): RequestParametersInter
      *
      * @return TParameters The parameters object for method chaining
      */
-    protected function update(string $id, RequestParametersInterface|null $object = null): RequestParametersInterface
+    protected function update(string $id, RequestParametersInterface|array|null $object = null): RequestParametersInterface|stdClass
     {
         // get the class to use (override or default)
         $class = RequestClasses::getParameter($this->_class . '.object') ?? $this->_parametersClass;
 
         // validate object type if provided
-        if ($object !== null && !($object instanceof $class)) {
+        if ($object !== null && !($object instanceof $class) && !is_array($object)) {
             throw new InvalidParameterTypeException($class, $object, 'object');
         }
 
@@ -80,10 +80,18 @@ protected function update(string $id, RequestParametersInterface|null $object =
         if (!isset($this->_command['update'][$id]) && $object === null) {
             $this->_command['update'][$id] = new \stdClass();
         } elseif ($object !== null) {
-            $object->bind($this->_command['update'][$id]);
+            if ($object instanceof $class) {
+                $object->bind($this->_command['update'][$id]);
+            } elseif (is_array($object)) {
+                $this->_command['update'][$id] = (object)$object;
+            }
         }
         // return instance of the specific parameters class
-        $instance = new $class($this->_command['update'][$id]);
+        if ($object instanceof $class) {
+            $instance = new $class($this->_command['update'][$id]);
+        } else {
+            $instance = $this->_command['update'][$id];
+        }
 
         return $instance;
     }