diff --git a/wp-content/themes/twentytwentyone/functions.php b/wp-content/themes/twentytwentyone/functions.php
index 52c5bb5faf..452b5b3d22 100644
--- a/wp-content/themes/twentytwentyone/functions.php
+++ b/wp-content/themes/twentytwentyone/functions.php
@@ -338,6 +338,9 @@ if ( ! function_exists( 'twenty_twenty_one_setup' ) ) {
 		// Add support for custom units.
 		// This was removed in WordPress 5.6 but is still required to properly support WP 5.5.
 		add_theme_support( 'custom-units' );
+
+		// Remove feed icon link from legacy RSS widget.
+		add_filter( 'rss_widget_feed_link', '__return_false' );
 	}
 }
 add_action( 'after_setup_theme', 'twenty_twenty_one_setup' );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a688a97fdc..40af19f916 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52190';
+$wp_version = '5.9-alpha-52191';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.