diff --git a/data/computercraft/lua/rom/programs/turtle_miner.lua b/data/computercraft/lua/rom/programs/turtle_miner.lua
index 974d711..045c4b9 100644
--- a/data/computercraft/lua/rom/programs/turtle_miner.lua
+++ b/data/computercraft/lua/rom/programs/turtle_miner.lua
@@ -4,6 +4,7 @@
 local term = require("term")
 local colors = require("colors")
 local textutils = require("textutils")
+local os = require("os")
 
 -- 保存当前颜色设置
 local old_fg = term.getTextColor()
diff --git a/installer.lua b/installer.lua
index c0c1472..d19759c 100644
--- a/installer.lua
+++ b/installer.lua
@@ -1,5 +1,5 @@
 -- LeonOS installer
-local INSTALLER_VERSION = "0.3.8 Beta 8"
+local INSTALLER_VERSION = "0.3.8 Beta 9"
 local DEFAULT_ROM_DIR = "/leonos"
 
 print("Start loading LeonOS installer ("..INSTALLER_VERSION..")...")