diff --git a/wp-admin/widgets-form-blocks.php b/wp-admin/widgets-form-blocks.php
index 7f3b6b2f65..95908e1e9e 100644
--- a/wp-admin/widgets-form-blocks.php
+++ b/wp-admin/widgets-form-blocks.php
@@ -52,7 +52,7 @@ wp_add_inline_script(
 
 wp_add_inline_script(
 	'wp-blocks',
-	sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( 'widgets-editor' ) ) ),
+	sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $block_editor_context ) ) ),
 	'after'
 );
 
diff --git a/wp-includes/class-wp-customize-widgets.php b/wp-includes/class-wp-customize-widgets.php
index 9df026d5b2..c96773b139 100644
--- a/wp-includes/class-wp-customize-widgets.php
+++ b/wp-includes/class-wp-customize-widgets.php
@@ -862,7 +862,7 @@ final class WP_Customize_Widgets {
 
 			wp_add_inline_script(
 				'wp-blocks',
-				sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( 'widgets-customizer' ) ) ),
+				sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $block_editor_context ) ) ),
 				'after'
 			);
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 819534e9cf..b40af41078 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51699';
+$wp_version = '5.9-alpha-51700';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.