diff --git a/core/core.go b/core/core.go
index 345f9daf..4e512118 100644
--- a/core/core.go
+++ b/core/core.go
@@ -19,7 +19,7 @@ import (
 var (
 	Version_x byte = 25
 	Version_y byte = 3
-	Version_z byte = 6
+	Version_z byte = 31
 )
 
 var (