diff --git a/app/admin/service/ConfigService.php b/app/admin/service/ConfigService.php
index 4706932..0beccae 100644
--- a/app/admin/service/ConfigService.php
+++ b/app/admin/service/ConfigService.php
@@ -9,7 +9,7 @@ class ConfigService
 
     public static function getVersion()
     {
-        $version = Cache('version');
+        $version = cache('version');
         if (empty($version)) {
             $version = sysconfig('site', 'site_version');
             cache('site_version', $version);