diff --git a/core/core.go b/core/core.go
index ecefc296..8f2950c5 100644
--- a/core/core.go
+++ b/core/core.go
@@ -19,7 +19,7 @@ import (
 var (
 	Version_x byte = 24
 	Version_y byte = 10
-	Version_z byte = 16
+	Version_z byte = 31
 )
 
 var (