diff --git a/WIZ550S2E_App/src/common.h b/WIZ550S2E_App/src/common.h
index c83ea21..3375c66 100644
--- a/WIZ550S2E_App/src/common.h
+++ b/WIZ550S2E_App/src/common.h
@@ -9,7 +9,7 @@
 
 #define MAJOR_VER		1
 #define MINOR_VER		1
-#define MAINTENANCE_VER	1
+#define MAINTENANCE_VER	2
 
 #define SOCK_DATA		0
 #define SOCK_CONFIG		1