diff --git src/wp-admin/update-core.php src/wp-admin/update-core.php
index 7c939e7..25a75a8 100644
--- src/wp-admin/update-core.php
+++ src/wp-admin/update-core.php
@@ -241,7 +241,7 @@ function list_plugin_updates() {
 <?php
 	foreach ( (array) $plugins as $plugin_file => $plugin_data) {
 		$info = plugins_api('plugin_information', array('slug' => $plugin_data->update->slug ));
-		if ( is_wp_error( $info ) ) {
+		if ( strpos( $plugin_data->update->package, 'https://downloads.wordpress.org' ) !== false && is_wp_error( $info ) ) {
 			continue;
 		}