diff --git a/public/main/inc/lib/UnserializeApi.php b/public/main/inc/lib/UnserializeApi.php
index 0d97e9b372..c1460c091c 100644
--- a/public/main/inc/lib/UnserializeApi.php
+++ b/public/main/inc/lib/UnserializeApi.php
@@ -1,16 +1,10 @@
 <?php
-/* For licensing terms, see /license.txt */
 
-use Brumann\Polyfill\Unserialize;
+/* For licensing terms, see /license.txt */
 
-/**
- * Class UnserializeApi.
- */
 class UnserializeApi
 {
     /**
-     * Unserialize content using Brummann\Polyfill\Unserialize.
-     *
      * @param string $type
      * @param string $serialized
      *
@@ -98,7 +92,6 @@ class UnserializeApi
                         scormOrganization::class,
                         scormResource::class,
                         Link::class,
-                        LpItem::class,
                     ]
                 );
                 break;