diff --git a/installer/install.py b/installer/install.py
index 65c1362..31f37fe 100644
--- a/installer/install.py
+++ b/installer/install.py
@@ -9,7 +9,6 @@ import os
 import shutil
 import json
 import platform
-import string
 
 ############ Config ############
 KEYWORD = "winpe"
@@ -19,7 +18,6 @@ DISK = "{disk}"
 
 
 def find_disk():
-    ventoy_drives = []
     if platform.system() == 'Linux':
         mount_point = "/mnt/prinjector_mount_point"
         print(
@@ -69,6 +67,10 @@ def find_disk():
         "Cannot find the Ventoy disk!(try to run ventoyPlugson once)")
 
 
+print("Update packages")
+os.system("git submodule update --init --recursive")
+
+
 DISK = DISK.replace("{disk}", find_disk())
 
 print("Use disk: "+DISK)