diff --git a/src/Core/DBMigrator.php b/src/Core/DBMigrator.php
index 30478cc9..10bf9092 100644
--- a/src/Core/DBMigrator.php
+++ b/src/Core/DBMigrator.php
@@ -14,7 +14,9 @@ class DBMigrator {
     use DBMigratorVip;
 
     /** Current schema version; changing it re-runs dbDelta. */
-    const SCHEMA_VERSION = '2.5.0';
+    // 2.5.1: order_aftersale 新增 images 列（售后举证图片）。dbDelta 仅在版本变化时
+    // 重跑，新增/调整列必须同步升版本，否则老安装不会执行 ALTER TABLE。
+    const SCHEMA_VERSION = '2.5.1';
 
     const OPT_KEY = 'aksrt_db_schema_version';
 
diff --git a/tests/widget-system/after-sale-policy-contract.test.cjs b/tests/widget-system/after-sale-policy-contract.test.cjs
index 71e4628e..a23aee82 100644
--- a/tests/widget-system/after-sale-policy-contract.test.cjs
+++ b/tests/widget-system/after-sale-policy-contract.test.cjs
@@ -181,6 +181,17 @@ test('after-sale tickets persist evidence images and expose the latest row', ()
   const schema = read('src/Core/DBMigratorPart2.php')
   assert.match(schema, /CREATE TABLE \{\$prefix\}aksrt_order_aftersale[\s\S]*?images LONGTEXT DEFAULT NULL[\s\S]*?refund_amount/)
 
+  // images 列随 schema 2.5.1 引入：dbDelta 只在版本变化时重跑，列变更必须同步升版本，
+  // 否则老安装不会 ALTER TABLE，写入直接报 Unknown column 'images'。
+  const migrator = read('src/Core/DBMigrator.php')
+  const version = migrator.match(/const SCHEMA_VERSION = '(\d+)\.(\d+)\.(\d+)'/)
+  assert.ok(version, 'DBMigrator exposes a numeric SCHEMA_VERSION')
+  const [major, minor, patch] = version.slice(1).map(Number)
+  assert.ok(
+    major > 2 || (major === 2 && minor > 5) || (major === 2 && minor === 5 && patch >= 1),
+    `SCHEMA_VERSION must be at least 2.5.1 after adding order_aftersale.images, got ${major}.${minor}.${patch}`
+  )
+
   const service = read('src/Payment/AfterSaleService.php')
   assert.match(service, /public function create\(int \$user_id, string \$order_number, string \$reason, array \$images = \[\]\)/)
   assert.match(service, /\$images = \$this->sanitize_images\(\$images\);/)