diff --git a/library/think/Session.php b/library/think/Session.php
index d5a6a5a5..5fcc413c 100644
--- a/library/think/Session.php
+++ b/library/think/Session.php
@@ -347,7 +347,7 @@ class Session
      * @param bool $delete 是否删除关联会话文件
      * @return void
      */
-    private static function regenerate($delete = false)
+    public static function regenerate($delete = false)
     {
         session_regenerate_id($delete);
     }