diff --git a/src/script.php b/src/script.php
index fd814908..7bb49fd3 100644
--- a/src/script.php
+++ b/src/script.php
@@ -273,6 +273,10 @@ class Pkg_MokowaasInstallerScript
 	{
 		$retired = [
 			['type' => 'plugin', 'folder' => 'system', 'element' => 'mokowaas_monitor'],
+			['type' => 'plugin', 'folder' => 'system', 'element' => 'mokojoomtos'],
+			['type' => 'plugin', 'folder' => 'system', 'element' => 'mokoatsautomation'],
+			['type' => 'plugin', 'folder' => 'webservices', 'element' => 'mokodpcalendarapi'],
+			['type' => 'plugin', 'folder' => 'system', 'element' => 'mokogallerycalendar'],
 		];
 
 		try
@@ -304,6 +308,36 @@ class Pkg_MokowaasInstallerScript
 						->where($db->quoteName('extension_id') . ' = ' . $extId)
 				)->execute();
 
+				// Remove update site links and update sites
+				$db->setQuery(
+					$db->getQuery(true)
+						->select($db->quoteName('update_site_id'))
+						->from($db->quoteName('#__update_sites_extensions'))
+						->where($db->quoteName('extension_id') . ' = ' . $extId)
+				);
+				$siteIds = $db->loadColumn();
+
+				$db->setQuery(
+					$db->getQuery(true)
+						->delete($db->quoteName('#__update_sites_extensions'))
+						->where($db->quoteName('extension_id') . ' = ' . $extId)
+				)->execute();
+
+				if (!empty($siteIds))
+				{
+					$db->setQuery(
+						$db->getQuery(true)
+							->delete($db->quoteName('#__updates'))
+							->where($db->quoteName('update_site_id') . ' IN (' . implode(',', $siteIds) . ')')
+					)->execute();
+
+					$db->setQuery(
+						$db->getQuery(true)
+							->delete($db->quoteName('#__update_sites'))
+							->where($db->quoteName('update_site_id') . ' IN (' . implode(',', $siteIds) . ')')
+					)->execute();
+				}
+
 				// Remove extension record
 				$db->setQuery(
 					$db->getQuery(true)