diff --git a/isotool.py b/isotool.py
index 3be813c..d38315e 100644
--- a/isotool.py
+++ b/isotool.py
@@ -5,7 +5,7 @@ from pathlib import Path
 from dataclasses import dataclass
 import typing
 
-SCRIPT_VERSION = "1.2"
+SCRIPT_VERSION = "1.3"
 SECTOR_SIZE = 0x800
 SYSTEM_AREA_SIZE = 0x10 * SECTOR_SIZE
 LAYER0_PVD_LOCATION = SYSTEM_AREA_SIZE