diff --git a/wp-admin/includes/class-plugin-upgrader.php b/wp-admin/includes/class-plugin-upgrader.php
index b171f9228b..09d02e2bfb 100644
--- a/wp-admin/includes/class-plugin-upgrader.php
+++ b/wp-admin/includes/class-plugin-upgrader.php
@@ -162,9 +162,9 @@ class Plugin_Upgrader extends WP_Upgrader {
 			 *
 			 * @since 5.5.0
 			 *
-			 * @param string  $package          The package file.
-			 * @param array   $new_plugin_data  The new plugin data.
-			 * @param string  $package_type     The package type (plugin or theme).
+			 * @param string  $package      The package file.
+			 * @param array   $data         The new plugin or theme data.
+			 * @param string  $package_type The package type ('plugin' or 'theme').
 			 */
 			do_action( 'upgrader_overwrote_package', $package, $this->new_plugin_data, 'plugin' );
 		}
diff --git a/wp-admin/includes/class-theme-upgrader.php b/wp-admin/includes/class-theme-upgrader.php
index 229a8115bd..cd5f528466 100644
--- a/wp-admin/includes/class-theme-upgrader.php
+++ b/wp-admin/includes/class-theme-upgrader.php
@@ -270,16 +270,7 @@ class Theme_Upgrader extends WP_Upgrader {
 		wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
 
 		if ( $parsed_args['overwrite_package'] ) {
-			/**
-			 * Fires when the upgrader has successfully overwritten a currently installed
-			 * plugin or theme with an uploaded zip package.
-			 *
-			 * @since 5.5.0
-			 *
-			 * @param string  $package        The package file.
-			 * @param array   $new_theme_data The new theme data.
-			 * @param string  $package_type   The package type (plugin or theme).
-			 */
+			/** This action is documented in wp-admin/includes/class-plugin-upgrader.php */
 			do_action( 'upgrader_overwrote_package', $package, $this->new_theme_data, 'theme' );
 		}
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 88da9e9e27..331178c4b8 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-alpha-49787';
+$wp_version = '5.7-alpha-49788';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.