diff --git a/componentbuildercustomadminheaderstabs.xml b/componentbuildercustomadminheaderstabs.xml
index b5a8fdb..c548ac1 100644
--- a/componentbuildercustomadminheaderstabs.xml
+++ b/componentbuildercustomadminheaderstabs.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<extension type="plugin" version="4" group="content" method="upgrade">
+<extension type="plugin" version="3.10" group="content" method="upgrade">
 	<name>PLG_CONTENT_COMPONENTBUILDERCUSTOMADMINHEADERSTABS</name>
-	<creationDate>24th October, 2023</creationDate>
+	<creationDate>2nd March, 2024</creationDate>
 	<author>Llewellyn van der Merwe</author>
 	<authorEmail>joomla@vdm.io</authorEmail>
 	<authorUrl>https://dev.vdm.io</authorUrl>
diff --git a/script.php b/script.php
index a2899c8..9bff16d 100644
--- a/script.php
+++ b/script.php
@@ -12,6 +12,11 @@
 // No direct access to this file
 defined('_JEXEC') or die('Restricted access');
 
+use Joomla\CMS\Factory;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Filesystem\File;
+use Joomla\CMS\Filesystem\Folder;
+
 /**
  * Content - Componentbuilder Custom Admin Headers Tabs script file.
  *
@@ -31,7 +36,7 @@ class plgContentComponentbuilderCustomAdminHeadersTabsInstallerScript
 	public function preflight($route, $adapter)
 	{
 		// get application
-		$app = JFactory::getApplication();
+		$app = Factory::getApplication();
 
 		// the default for both install and update
 		$jversion = new JVersion();