diff --git a/docs/install_guide/版本升级手册.md b/docs/install_guide/版本升级手册.md
index 2a9951b1..691281f6 100644
--- a/docs/install_guide/版本升级手册.md
+++ b/docs/install_guide/版本升级手册.md
@@ -6,7 +6,10 @@
 
 ### 升级至 `master` 版本
 
-暂无
+**SQL 变更**
+```sql
+alter TABLE logi_security_user MODIFY phone VARCHAR(20);
+```
 
 ### 升级至 `3.2.0` 版本
 
diff --git a/km-dist/init/sql/ddl-logi-security.sql b/km-dist/init/sql/ddl-logi-security.sql
index 3e37e5b0..4f37f226 100644
--- a/km-dist/init/sql/ddl-logi-security.sql
+++ b/km-dist/init/sql/ddl-logi-security.sql
@@ -135,7 +135,7 @@ CREATE TABLE `logi_security_user`
     pw          varchar(2048)                          not null comment '用户密码',
     salt        char(5)      default ''                not null comment '密码盐',
     real_name   varchar(128) default ''                not null comment '真实姓名',
-    phone       char(11)     default ''                not null comment 'mobile',
+    phone       char(20)     default ''                not null comment 'mobile',
     email       varchar(30)  default ''                not null comment 'email',
     dept_id     int                                    null comment '所属部门id',
     is_delete   tinyint(1)   default 0                 not null comment '逻辑删除',