diff --git a/wp-admin/includes/class-wp-upgrader.php b/wp-admin/includes/class-wp-upgrader.php
index ae86f60f45..93003524a9 100644
--- a/wp-admin/includes/class-wp-upgrader.php
+++ b/wp-admin/includes/class-wp-upgrader.php
@@ -1845,7 +1845,7 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 		remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
 
 		if ( $parsed_args['clear_update_cache'] ) {
-			_wp_clear_update_cache();
+			wp_clean_update_cache();
 		}
 
 		return $results;
@@ -2776,7 +2776,7 @@ class WP_Automatic_Updater {
 			}
 
 			// Clear existing caches
-			_wp_clear_update_cache();
+			wp_clean_update_cache();
 
 			wp_version_check();  // check for Core updates
 			wp_update_themes();  // Check for Theme updates
diff --git a/wp-includes/update.php b/wp-includes/update.php
index 4d62cc82e7..597a020f83 100644
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -655,7 +655,12 @@ function wp_schedule_update_checks() {
  *
  * @since 4.1.0
  */
-function _wp_clear_update_cache() {
+function wp_clean_update_cache() {
+	if ( function_exists( 'wp_clean_plugins_cache' ) ) {
+		wp_clean_plugins_cache();
+	} else {
+		delete_site_transient( 'update_plugins' );
+	}
 	wp_clean_plugins_cache();
 	wp_clean_themes_cache();
 	delete_site_transient( 'update_core' );
@@ -683,7 +688,7 @@ add_action( 'admin_init', '_maybe_update_themes' );
 add_action( 'wp_update_themes', 'wp_update_themes' );
 add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
 
-add_action( 'update_option_WPLANG', '_wp_clear_update_cache' , 10, 0 );
+add_action( 'update_option_WPLANG', 'wp_clean_update_cache' , 10, 0 );
 
 add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' );