diff --git a/script/sql/ry_vue_5.X.sql b/script/sql/ry_vue_5.X.sql
index 3ac8116e2..c17e4a01a 100644
--- a/script/sql/ry_vue_5.X.sql
+++ b/script/sql/ry_vue_5.X.sql
@@ -828,7 +828,7 @@ create table sys_oss (
     original_name   varchar(255) not null default ''        comment '原名',
     file_suffix     varchar(10)  not null default ''        comment '文件后缀名',
     url             varchar(500) not null                   comment 'URL地址',
-    ext1            text                  default ''        comment '扩展字段',
+    ext1            text                  default null      comment '扩展字段',
     create_dept     bigint(20)            default null      comment '创建部门',
     create_time     datetime              default null      comment '创建时间',
     create_by       bigint(20)            default null      comment '上传人',