diff --git a/_define.php b/_define.php
index 1001531..816a690 100644
--- a/_define.php
+++ b/_define.php
@@ -20,7 +20,10 @@ $this->registerModule(
     'Osku and contributors',
     '1.5',
     [
-        'requires'    => [['core', '2.26']],
+        'requires' => [
+            ['php', '8.1'],
+            ['core', '2.26'],
+        ],
         'permissions' => dcCore::app()->auth->makePermissions([
             dcCore::app()->auth::PERMISSION_CONTENT_ADMIN,
             initTemplator::PERMISSION_TEMPLATOR,
diff --git a/src/Backend.php b/src/Backend.php
index 8fc1661..7ee38af 100644
--- a/src/Backend.php
+++ b/src/Backend.php
@@ -25,7 +25,6 @@ class Backend extends dcNsProcess
     public static function init(): bool
     {
         static::$init == defined('DC_CONTEXT_ADMIN')
-            && My::phpCompliant()
             && !is_null(dcCore::app()->blog) && !is_null(dcCore::app()->auth)
             && dcCore::app()->auth->check(dcCore::app()->auth->makePermissions([
                 My::PERMISSION_TEMPLATOR,
diff --git a/src/Frontend.php b/src/Frontend.php
index 525936e..23e64dc 100644
--- a/src/Frontend.php
+++ b/src/Frontend.php
@@ -25,7 +25,7 @@ class Frontend extends dcNsProcess
 {
     public static function init(): bool
     {
-        static::$init = My::phpCompliant();
+        static::$init = defined('DC_RC_PATH');
 
         return static::$init;
     }
diff --git a/src/Manage.php b/src/Manage.php
index a1c62c2..bba5483 100644
--- a/src/Manage.php
+++ b/src/Manage.php
@@ -32,7 +32,6 @@ class Manage extends dcNsProcess
     public static function init(): bool
     {
         static::$init == defined('DC_CONTEXT_ADMIN')
-            && My::phpCompliant()
             && !is_null(dcCore::app()->auth)
             && !is_null(dcCore::app()->blog)
             && dcCore::app()->auth->check(dcCore::app()->auth->makePermissions([
diff --git a/src/My.php b/src/My.php
index fb0b458..3caafdb 100644
--- a/src/My.php
+++ b/src/My.php
@@ -24,9 +24,6 @@ class My
     /** @var    string  This module permission */
     public const PERMISSION_TEMPLATOR = 'templator';
 
-    /** @var    string  This module required php version */
-    public const PHP_MIN = '8.1';
-
     /**
      * This module id.
      */
@@ -52,12 +49,4 @@ class My
     {
         return dirname(__DIR__);
     }
-
-    /**
-     * Check this module PHP version compliant.
-     */
-    public static function phpCompliant(): bool
-    {
-        return version_compare(phpversion(), self::PHP_MIN, '>=');
-    }
 }
diff --git a/src/Prepend.php b/src/Prepend.php
index 44924f1..59ed1d4 100644
--- a/src/Prepend.php
+++ b/src/Prepend.php
@@ -21,7 +21,7 @@ class Prepend extends dcNsProcess
 {
     public static function init(): bool
     {
-        static::$init = My::phpCompliant();
+        static::$init = defined('DC_RC_PATH');
 
         return static::$init;
     }