diff --git a/app/gui/oven_control/define.h b/app/gui/oven_control/define.h
index d20e6ad..d213f68 100644
--- a/app/gui/oven_control/define.h
+++ b/app/gui/oven_control/define.h
@@ -5,14 +5,14 @@
 
 #define MAJOR_VER   1
 #define MINOR_VER   6
-#define HOTFIX_VER  4
+#define HOTFIX_VER  5
 
 // 0 for normal
 // 1 for premium
 #define MODEL_GRADE 1
 
 #define ENABLE_WASH_RESUMING 0
-#define WATER_LEVEL_HACCP_STAMP 0
+#define WATER_LEVEL_HACCP_STAMP 1
 
 namespace Define
 {