diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php
index e4fdf469f8..899317fc8b 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php
@@ -321,6 +321,9 @@ class WP_REST_Widgets_Controller extends WP_REST_Controller {
 			);
 			$_REQUEST = $_POST;
 
+			/** This action is documented in wp-admin/widgets-form.php */
+			do_action( 'delete_widget', $widget_id, $sidebar_id, $id_base );
+
 			$callback = $wp_registered_widget_updates[ $id_base ]['callback'];
 			$params   = $wp_registered_widget_updates[ $id_base ]['params'];
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5297c32f39..b75cc9346e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-alpha-51059';
+$wp_version = '5.8-alpha-51060';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.