diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index 51e1146bd1..041c828bf2 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -113,9 +113,9 @@ function wp_default_packages_vendor( $scripts ) {
 		'lodash'                      => '4.17.19',
 		'wp-polyfill-fetch'           => '3.6.17',
 		'wp-polyfill-formdata'        => '4.0.10',
-		'wp-polyfill-node-contains'   => '4.6.0',
+		'wp-polyfill-node-contains'   => '4.8.0',
 		'wp-polyfill-url'             => '3.6.4',
-		'wp-polyfill-dom-rect'        => '4.6.0',
+		'wp-polyfill-dom-rect'        => '4.8.0',
 		'wp-polyfill-element-closest' => '3.0.2',
 		'wp-polyfill-object-fit'      => '2.3.5',
 		'wp-polyfill-inert'           => '3.1.2',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 963d740a0d..59b2d3fe5a 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56645';
+$wp_version = '6.4-alpha-56646';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.