diff --git a/sabre/xml/lib/Reader.php b/sabre/xml/lib/Reader.php
index 7871a74f5..271ef3262 100644
--- a/sabre/xml/lib/Reader.php
+++ b/sabre/xml/lib/Reader.php
@@ -56,7 +56,7 @@ public function getClark()
     public function parse(): array
     {
         $previousEntityState = null;
-        $shouldCallLibxmlDisableEntityLoader = (\LIBXML_VERSION < 20900);
+        $shouldCallLibxmlDisableEntityLoader = (\PHP_VERSION_ID < 80000);
         if ($shouldCallLibxmlDisableEntityLoader) {
             $previousEntityState = libxml_disable_entity_loader(true);
         }