diff --git a/CHANGELOG.md b/CHANGELOG.md
index 439454d..4df2345 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # 变更日志
 
+## 2026-05-18
+
+- [修复] 用户管理"最后登录"时间不动态更新：SSO 免登录、本地 JWT 会话验证路径现在也会更新 `last_login_at`（此前仅密码登录路径更新，导致 SSO 用户始终显示"从未登录"）
+
 ## 2026-05-15
 
 - [修复] docker-compose.yml 缺少 `ALLOWED_API_KEYS` 环境变量传入，导致 P2 部署后中间件返回 401，issue-ai 调用 assets API 再次失效
diff --git a/src/lib/auth.ts b/src/lib/auth.ts
index 320b35f..b3ec739 100644
--- a/src/lib/auth.ts
+++ b/src/lib/auth.ts
@@ -60,7 +60,7 @@ export async function getSession(): Promise<SessionPayload | null> {
         'SELECT id, username, role FROM users WHERE username = ? AND is_active = 1'
       ).get(sharedPayload.username) as { id: number; username: string; role: string } | undefined
       if (row) {
-        db.prepare("UPDATE users SET last_active_at = datetime('now', '+8 hours') WHERE id = ?").run(row.id)
+        db.prepare("UPDATE users SET last_login_at = datetime('now', '+8 hours'), last_active_at = datetime('now', '+8 hours') WHERE id = ?").run(row.id)
         return { userId: row.id, username: row.username, role: row.role }
       }
       // SSO 免登录：LLDAP 验证通过但本地无记录 → 自动创建（viewer 角色）
@@ -81,7 +81,7 @@ export async function getSession(): Promise<SessionPayload | null> {
   if (token) {
     const payload = verifyJwt(token)
     if (payload) {
-      db.prepare("UPDATE users SET last_active_at = datetime('now', '+8 hours') WHERE id = ?").run(payload.userId)
+      db.prepare("UPDATE users SET last_login_at = datetime('now', '+8 hours'), last_active_at = datetime('now', '+8 hours') WHERE id = ?").run(payload.userId)
       return payload
     }
   }