diff --git a/migrations/000008_add_model_group_is_default.sql b/migrations/000008_add_model_group_is_default.sql
deleted file mode 100644
index 574a75e..0000000
--- a/migrations/000008_add_model_group_is_default.sql
+++ /dev/null
@@ -1,9 +0,0 @@
--- +goose Up
--- 模型分组增加"默认分组"标记，标记为默认的分组在新租户注册时自动关联
-
-ALTER TABLE mdl_model_groups ADD COLUMN is_default BOOLEAN NOT NULL DEFAULT FALSE;
-COMMENT ON COLUMN mdl_model_groups.is_default IS '是否为新租户默认模型组，注册时自动关联';
-
--- +goose Down
-
-ALTER TABLE mdl_model_groups DROP COLUMN IF EXISTS is_default;
diff --git a/migrations/000009_add_user_agreements.sql b/migrations/000008_v0_1_10_version.sql
similarity index 91%
rename from migrations/000009_add_user_agreements.sql
rename to migrations/000008_v0_1_10_version.sql
index 1c1a9cf..dc9eb6c 100644
--- a/migrations/000009_add_user_agreements.sql
+++ b/migrations/000008_v0_1_10_version.sql
@@ -1,5 +1,10 @@
 -- +goose Up
 
+-- 模型分组增加"默认分组"标记，标记为默认的分组在新租户注册时自动关联
+
+ALTER TABLE mdl_model_groups ADD COLUMN is_default BOOLEAN NOT NULL DEFAULT FALSE;
+COMMENT ON COLUMN mdl_model_groups.is_default IS '是否为新租户默认模型组，注册时自动关联';
+
 -- ============================================================
 -- sys_agreements — 用户协议/政策版本管理
 -- ============================================================
@@ -77,3 +82,5 @@ COMMENT ON COLUMN sys_agreement_acceptances.created_at IS '接受时间';
 -- +goose Down
 DROP TABLE IF EXISTS sys_agreement_acceptances;
 DROP TABLE IF EXISTS sys_agreements;
+
+ALTER TABLE mdl_model_groups DROP COLUMN IF EXISTS is_default;