diff --git a/sql/bcnftdb.sql b/sql/bcnftdb.sql
index 30b50ab4..83b8289b 100644
--- a/sql/bcnftdb.sql
+++ b/sql/bcnftdb.sql
@@ -32,6 +32,7 @@ CREATE TABLE `t_nft` (
   `last_owner_address` varchar(60) COMMENT 'last_owner_address',
   `last_lock_idx` bigint NOT NULL DEFAULT '0' COMMENT 'last_lock_idx',
   `last_lock_address` varchar(60) COMMENT 'last_lock_address',
+  `last_lock_time` int(11) NOT NULL DEFAULT '0' COMMENT 'last_lock_time',
   `creator_address` varchar(60) NOT NULL DEFAULT '' COMMENT 'creator_address',
   `token_id` varchar(60) NOT NULL DEFAULT '' COMMENT 'token_id',
   `token_type` int(11) NOT NULL DEFAULT '0' COMMENT 'nft类型 1:英雄 2:枪支 3:芯片 6:荣誉 7:徽章',