diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d09735..04e38b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+2023.05.13
+- require Dotclear 2.26
+- require PHP 8.1+
+- use define php_min
+- use dotclear lock method
+
 2023.04.23
 - require Dotclear 2.26
 - require PHP 8.1
diff --git a/_define.php b/_define.php
index 68b9220..00e4512 100644
--- a/_define.php
+++ b/_define.php
@@ -10,7 +10,7 @@
  * @copyright Jean-Christian Denis
  * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
  */
-if (!defined('DC_RC_PATH')) {
+if (!defined('DC_RC_PATH') || is_null(dcCore::app()->auth)) {
     return null;
 }
 
@@ -18,15 +18,15 @@ $this->registerModule(
     'Periodical',
     'Published periodically entries',
     'Jean-Christian Denis and contributors',
-    '2023.04.23',
+    '2023.05.13',
     [
         'requires' => [
             ['php', '8.1'],
             ['core', '2.26'],
         ],
         'permissions' => dcCore::app()->auth->makePermissions([
-            dcAuth::PERMISSION_USAGE,
-            dcAuth::PERMISSION_CONTENT_ADMIN,
+            dcCore::app()->auth::PERMISSION_USAGE,
+            dcCore::app()->auth::PERMISSION_CONTENT_ADMIN,
         ]),
         'type'       => 'plugin',
         'support'    => 'https://github.com/JcDenis/periodical',
diff --git a/dcstore.xml b/dcstore.xml
index 279a1c4..67795ea 100644
--- a/dcstore.xml
+++ b/dcstore.xml
@@ -2,10 +2,10 @@
 <modules xmlns:da="http://dotaddict.org/da/">
   <module id="periodical">
     <name>Periodical</name>
-    <version>2023.04.23</version>
+    <version>2023.05.13</version>
     <author>Jean-Christian Denis and contributors</author>
     <desc>Published periodically entries</desc>
-    <file>https://github.com/JcDenis/periodical/releases/download/v2023.04.23/plugin-periodical.zip</file>
+    <file>https://github.com/JcDenis/periodical/releases/download/v2023.05.13/plugin-periodical.zip</file>
     <da:dcmin>2.26</da:dcmin>
     <da:details>https://plugins.dotaddict.org/dc2/details/periodical</da:details>
     <da:support>https://github.com/JcDenis/periodical</da:support>