diff --git a/Exception/Charge.php b/Exception/Charge.php
index 06318f0..b92959a 100644
--- a/Exception/Charge.php
+++ b/Exception/Charge.php
@@ -6,7 +6,7 @@
  * и диагностическую информацию при сбое.
  */
 namespace Dfe\Omise\Exception;
-use Dfe\Omise\Api\O as AO;
+use Dfe\Omise\SDK\O as AO;
 final class Charge extends \Dfe\Omise\Exception {
 	/**
 	 * 2017-01-09
diff --git a/Facade/O.php b/Facade/O.php
index a0a7a15..10b1860 100644
--- a/Facade/O.php
+++ b/Facade/O.php
@@ -1,6 +1,6 @@
 <?php
 namespace Dfe\Omise\Facade;
-use Dfe\Omise\Api\O as AO;
+use Dfe\Omise\SDK\O as AO;
 use OmiseApiResource as _O;
 // 2017-02-11
 final class O extends \Df\StripeClone\Facade\O {
diff --git a/Api/O.php b/SDK/O.php
similarity index 95%
rename from Api/O.php
rename to SDK/O.php
index 6574863..e753658 100644
--- a/Api/O.php
+++ b/SDK/O.php
@@ -1,6 +1,6 @@
 <?php
 // 2016-11-14
-namespace Dfe\Omise\Api;
+namespace Dfe\Omise\SDK;
 use OmiseApiResource as Sb;
 final class O extends Sb {
 	/**
diff --git a/composer.json b/composer.json
index 74a3e88..cde20a9 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "mage2pro/omise"
-	,"version": "1.8.10"
+	,"version": "1.8.11"
 	,"description": "The «Omise» payment extension for Magento 2."
 	,"type": "magento2-module"
 	,"homepage": "https://mage2.pro/c/extensions/omise"
@@ -11,7 +11,7 @@
 		"homepage": "https://mage2.pro/users/dmitry_fedyuk",
 		"role": "Developer"
 	}]
-	,"require": {"mage2pro/core": ">=2.4.45", "omise/omise-php": "^2.5.0"}
+	,"require": {"mage2pro/core": ">=2.5.25", "omise/omise-php": "^2.5.0"}
 	,"autoload": {"files": ["registration.php"], "psr-4": {"Dfe\\Omise\\": ""}}
 	,"keywords": [
 		"3D Secure"