diff --git a/package.json b/package.json
index bb8581b..fa5f051 100644
--- a/package.json
+++ b/package.json
@@ -693,11 +693,12 @@
         "name": "插件自动升级",
         "description": "定时检测、升级插件。",
         "labels": "自动更新",
-        "version": "1.9",
+        "version": "2.0",
         "icon": "PluginAutoUpgrade.png",
         "author": "hotlcc",
         "level": 1,
         "history": {
+            "v2.0": "修正了缺省时的cron表达式。",
             "v1.9": "优化通知类型。主程序需升级至v1.9.2及以上版本，否则插件功能异常！",
             "v1.8": "修复重置插件后丢失配置建议的问题。",
             "v1.7": "修复了一些BUG。",
diff --git a/plugins/pluginautoupgrade/__init__.py b/plugins/pluginautoupgrade/__init__.py
index 20187c7..8c23609 100644
--- a/plugins/pluginautoupgrade/__init__.py
+++ b/plugins/pluginautoupgrade/__init__.py
@@ -24,7 +24,7 @@ class PluginAutoUpgrade(_PluginBase):
     # 插件图标
     plugin_icon = "PluginAutoUpgrade.png"
     # 插件版本
-    plugin_version = "1.9"
+    plugin_version = "2.0"
     # 插件作者
     plugin_author = "hotlcc"
     # 作者主页
@@ -53,7 +53,7 @@ class PluginAutoUpgrade(_PluginBase):
     # 配置相关
     # 插件缺省配置
     __config_default: Dict[str, Any] = {
-        'cron': '* 0/4 * * *',
+        'cron': '0,5 0/4 * * *',
         'save_record_quantity': 100,
         'display_record_quantity': 10,
     }