diff --git a/system/src/Grav/Common/User/DataUser/User.php b/system/src/Grav/Common/User/DataUser/User.php
index 8b6cfed22..7bf9fd0a2 100644
--- a/system/src/Grav/Common/User/DataUser/User.php
+++ b/system/src/Grav/Common/User/DataUser/User.php
@@ -87,9 +87,10 @@ class User extends Data implements UserInterface
      * Update object with data
      *
      * @param array $data
+     * @param array $files
      * @return $this
      */
-    public function update(array $data)
+    public function update(array $data, array $files = [])
     {
         $this->merge($data);
 
diff --git a/system/src/Grav/Common/User/Interfaces/UserInterface.php b/system/src/Grav/Common/User/Interfaces/UserInterface.php
index 040cd095b..8e6762978 100644
--- a/system/src/Grav/Common/User/Interfaces/UserInterface.php
+++ b/system/src/Grav/Common/User/Interfaces/UserInterface.php
@@ -15,6 +15,13 @@ use Grav\Common\Media\Interfaces\MediaInterface;
 use Grav\Common\Page\Medium\ImageMedium;
 use RocketTheme\Toolbox\ArrayTraits\ExportInterface;
 
+/**
+ * Interface UserInterface
+ * @package Grav\Common\User\Interfaces
+ *
+ * @property string $username
+ * @property string $email
+ */
 interface UserInterface extends DataInterface, MediaInterface, \ArrayAccess, \JsonSerializable, ExportInterface
 {
     /**
@@ -123,9 +130,10 @@ interface UserInterface extends DataInterface, MediaInterface, \ArrayAccess, \Js
      * Update object with data
      *
      * @param array $data
+     * @param array $files
      * @return $this
      */
-    public function update(array $data);
+    public function update(array $data, array $files = []);
 
     /**
      * Returns whether the data already exists in the storage.
diff --git a/system/src/Grav/Framework/Flex/Interfaces/FlexObjectInterface.php b/system/src/Grav/Framework/Flex/Interfaces/FlexObjectInterface.php
index c747d3534..4f03a3984 100644
--- a/system/src/Grav/Framework/Flex/Interfaces/FlexObjectInterface.php
+++ b/system/src/Grav/Framework/Flex/Interfaces/FlexObjectInterface.php
@@ -82,6 +82,14 @@ interface FlexObjectInterface extends NestedObjectInterface, \ArrayAccess
      */
     public function exists();
 
+    /**
+     * @param array $data
+     * @param array $files
+     * @return $this
+     * @throws \RuntimeException
+     */
+    public function update(array $data, array $files = []);
+
     /**
      * Returns the blueprint for the object.
      *