diff --git a/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php b/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php
index dac9300..c61b7e4 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php
@@ -149,6 +149,7 @@ class Number extends Node implements \ArrayAccess
     /**
      * {@inheritdoc}
      */
+#[\ReturnTypeWillChange]		 
     public function offsetExists($offset)
     {
         if ($offset === -3) {