diff --git a/core/core.go b/core/core.go
index a4f0f169..78a74dd7 100644
--- a/core/core.go
+++ b/core/core.go
@@ -21,7 +21,7 @@ import (
 var (
 	Version_x byte = 1
 	Version_y byte = 8
-	Version_z byte = 11
+	Version_z byte = 12
 )
 
 var (