diff --git a/core/core.go b/core/core.go
index c5a8130f..7d8c0cde 100644
--- a/core/core.go
+++ b/core/core.go
@@ -19,8 +19,8 @@ import (
 
 var (
 	Version_x byte = 26
-	Version_y byte = 3
-	Version_z byte = 27
+	Version_y byte = 4
+	Version_z byte = 13
 )
 
 var (