diff --git a/src/zkbdef.h b/src/zkbdef.h
index 314b2b7..51a8d47 100644
--- a/src/zkbdef.h
+++ b/src/zkbdef.h
@@ -19,9 +19,9 @@ extern "C" {
 #include "common/udp_readable.h"
 #include "cJSON.h"
 
-#define ZKB_MAJOR  2
+#define ZKB_MAJOR  1
 #define ZKB_MINOR  0
-#define ZKB_PATCH  0
+#define ZKB_PATCH  1
 
 #ifdef __cplusplus
 }