diff --git a/src/main/java/cn/citycraft/Yum/commands/CommandUpgrade.java b/src/main/java/cn/citycraft/Yum/commands/CommandUpgrade.java
index fd32f25..1aabf08 100644
--- a/src/main/java/cn/citycraft/Yum/commands/CommandUpgrade.java
+++ b/src/main/java/cn/citycraft/Yum/commands/CommandUpgrade.java
@@ -27,18 +27,19 @@ public class CommandUpgrade extends BaseCommand {
 
 	@Override
 	public void execute(final CommandSender sender, String label, final String[] args) throws CommandException {
-		final String pluginname = args[0];
-		final Plugin plugin = Bukkit.getServer().getPluginManager().getPlugin(pluginname);
-		sender.sendMessage("§a开始升级插件: " + pluginname);
-		if (plugin != null)
-			Bukkit.getScheduler().runTaskAsynchronously(main, () -> {
-				if (args.length == 1)
+		Bukkit.getScheduler().runTaskAsynchronously(main, () -> {
+			if (args.length == 0)
+				YumManager.plugman.upgrade(sender);
+			else {
+				String pluginname = args[0];
+				Plugin plugin = Bukkit.getServer().getPluginManager().getPlugin(pluginname);
+				sender.sendMessage("§a开始升级插件: " + pluginname);
+				if (plugin != null)
 					YumManager.plugman.upgrade(sender, plugin);
 				else
-					YumManager.plugman.upgrade(sender);
-			});
-		else
-			sender.sendMessage("§c插件未安装或已卸载 需要安装请使用yum install " + pluginname + "!");
+					sender.sendMessage("§c插件未安装或已卸载 需要安装请使用yum install " + pluginname + "!");
+			}
+		});
 	};
 
 	@Override