diff --git a/continew-admin-common/src/main/java/top/continew/admin/common/model/resp/CaptchaResp.java b/continew-admin-common/src/main/java/top/continew/admin/common/model/resp/CaptchaResp.java
index 7b5e4c80..4adb6889 100644
--- a/continew-admin-common/src/main/java/top/continew/admin/common/model/resp/CaptchaResp.java
+++ b/continew-admin-common/src/main/java/top/continew/admin/common/model/resp/CaptchaResp.java
@@ -48,4 +48,7 @@ public class CaptchaResp implements Serializable {
      */
     @Schema(description = "验证码图片（Base64编码，带图片格式：data:image/gif;base64）", example = "data:image/png;base64,iVBORw0KGgoAAAAN...")
     private String img;
+
+    @Schema(description = "过期时间戳", example = "1714376969409")
+    private Long expireTime;
 }
diff --git a/continew-admin-system/src/main/java/top/continew/admin/system/model/req/DeptReq.java b/continew-admin-system/src/main/java/top/continew/admin/system/model/req/DeptReq.java
index 9b1a693e..cda0dd95 100644
--- a/continew-admin-system/src/main/java/top/continew/admin/system/model/req/DeptReq.java
+++ b/continew-admin-system/src/main/java/top/continew/admin/system/model/req/DeptReq.java
@@ -26,7 +26,6 @@ import org.hibernate.validator.constraints.Length;
 import top.continew.admin.common.constant.RegexConstants;
 import top.continew.admin.common.enums.DisEnableStatusEnum;
 import top.continew.starter.extension.crud.model.req.BaseReq;
-import top.continew.starter.extension.crud.util.ValidateGroup;
 
 import java.io.Serial;
 
@@ -47,7 +46,7 @@ public class DeptReq extends BaseReq {
      * 上级部门 ID
      */
     @Schema(description = "上级部门 ID", example = "2")
-    @NotNull(message = "上级部门不能为空", groups = ValidateGroup.Crud.Add.class)
+    @NotNull(message = "上级部门不能为空")
     private Long parentId;
 
     /**
diff --git a/continew-admin-webapi/src/main/java/top/continew/admin/webapi/common/CaptchaController.java b/continew-admin-webapi/src/main/java/top/continew/admin/webapi/common/CaptchaController.java
index 48598f84..d764591f 100644
--- a/continew-admin-webapi/src/main/java/top/continew/admin/webapi/common/CaptchaController.java
+++ b/continew-admin-webapi/src/main/java/top/continew/admin/webapi/common/CaptchaController.java
@@ -17,6 +17,7 @@
 package top.continew.admin.webapi.common;
 
 import cn.dev33.satoken.annotation.SaIgnore;
+import cn.hutool.core.date.LocalDateTimeUtil;
 import cn.hutool.core.lang.Dict;
 import cn.hutool.core.lang.RegexPool;
 import cn.hutool.core.map.MapUtil;
@@ -57,6 +58,7 @@ import top.continew.starter.messaging.mail.util.MailUtils;
 import top.continew.starter.web.model.R;
 
 import java.time.Duration;
+import java.time.LocalDateTime;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
@@ -101,8 +103,10 @@ public class CaptchaController {
         String uuid = IdUtil.fastUUID();
         String captchaKey = CacheConstants.CAPTCHA_KEY_PREFIX + uuid;
         Captcha captcha = graphicCaptchaService.getCaptcha();
+        long expireTime = LocalDateTimeUtil.toEpochMilli(LocalDateTime.now()
+            .plusMinutes(captchaProperties.getExpirationInMinutes()));
         RedisUtils.set(captchaKey, captcha.text(), Duration.ofMinutes(captchaProperties.getExpirationInMinutes()));
-        return R.ok(CaptchaResp.builder().uuid(uuid).img(captcha.toBase64()).build());
+        return R.ok(CaptchaResp.builder().uuid(uuid).img(captcha.toBase64()).expireTime(expireTime).build());
     }
 
     @Operation(summary = "获取邮箱验证码", description = "发送验证码到指定邮箱")