diff --git a/src/main/java/org/tron/core/config/Parameter.java b/src/main/java/org/tron/core/config/Parameter.java
index 184c71edb6a..2a41b5b06ec 100644
--- a/src/main/java/org/tron/core/config/Parameter.java
+++ b/src/main/java/org/tron/core/config/Parameter.java
@@ -23,7 +23,7 @@ interface ChainConstant {
     int BLOCK_FILLED_SLOTS_NUMBER = 128;
     int MAX_VOTE_NUMBER = 30;
     int MAX_FROZEN_NUMBER = 1;
-    int version = 1;
+    int version = 2;
   }
 
   interface NodeConstant {