diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/OpenApprovalChangeEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/OpenApprovalChangeEvent.cs
index 30763206..bfd56e26 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/OpenApprovalChangeEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/OpenApprovalChangeEvent.cs
@@ -29,7 +29,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                                         /// <summary>
                                         /// 获取或设置审批人列表。
                                         /// </summary>
-                                        [System.Xml.Serialization.XmlArray("Item")]
+                                        [System.Xml.Serialization.XmlElement("Item", typeof(ApprovalerItem))]
                                         public ApprovalerItem[] Items { get; set; } = default!;
                                     }
 
@@ -100,7 +100,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                                 /// <summary>
                                 /// 获取或设置节点审批人列表。
                                 /// </summary>
-                                [System.Xml.Serialization.XmlArray("Items")]
+                                [System.Xml.Serialization.XmlElement("Items")]
                                 public Types.ApprovalerList ApprovalerList { get; set; } = default!;
                             }
                         }
@@ -108,7 +108,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                         /// <summary>
                         /// 获取或设置审批流程详情列表。
                         /// </summary>
-                        [System.Xml.Serialization.XmlArray("ApprovalNode")]
+                        [System.Xml.Serialization.XmlElement("ApprovalNode", typeof(Types.RecordDetail))]
                         public Types.RecordDetail[] RecordDetailList { get; set; } = default!;
                     }
 
@@ -147,7 +147,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                         /// <summary>
                         /// 获取或设置审批抄送列表。
                         /// </summary>
-                        [System.Xml.Serialization.XmlArray("NotifyNode")]
+                        [System.Xml.Serialization.XmlElement("NotifyNode", typeof(Types.Notifier))]
                         public Types.Notifier[] NotifierList { get; set; } = default!;
                     }
                 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/SystemApprovalChangeEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/SystemApprovalChangeEvent.cs
index bede1420..a1acc237 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/SystemApprovalChangeEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Approval/SystemApprovalChangeEvent.cs
@@ -86,7 +86,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                                 /// <summary>
                                 /// 获取或设置审批意见附件 MediaId 列表。
                                 /// </summary>
-                                [System.Xml.Serialization.XmlArray("Attach", IsNullable = true)]
+                                [System.Xml.Serialization.XmlElement("Attach", Type = typeof(string), IsNullable = true)]
                                 public string[]? SpeechMediaIdList { get; set; }
                             }
                         }
@@ -106,7 +106,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                         /// <summary>
                         /// 获取或设置审批流程详情列表。
                         /// </summary>
-                        [System.Xml.Serialization.XmlArray("Details")]
+                        [System.Xml.Serialization.XmlElement("Details", typeof(Types.RecordDetail))]
                         public Types.RecordDetail[] DetailList { get; set; } = default!;
                     }
 
@@ -145,7 +145,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                         /// <summary>
                         /// 获取或设置评论内容附件 MediaId 列表。
                         /// </summary>
-                        [System.Xml.Serialization.XmlArray("Attach")]
+                        [System.Xml.Serialization.XmlElement("Attach", Type = typeof(string))]
                         public string[] MediaIdList { get; set; } = default!;
 
                         /// <summary>
@@ -201,19 +201,19 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                 /// <summary>
                 /// 获取或设置抄送人列表。
                 /// </summary>
-                [System.Xml.Serialization.XmlArray("Notifyer")]
+                [System.Xml.Serialization.XmlElement("Notifyer", Type = typeof(Types.Notifier))]
                 public Types.Notifier[]? NotifyerList { get; set; }
 
                 /// <summary>
                 /// 获取或设置审批流程列表。
                 /// </summary>
-                [System.Xml.Serialization.XmlArray("SpRecord")]
+                [System.Xml.Serialization.XmlElement("SpRecord", Type = typeof(Types.Record))]
                 public Types.Record[] RecordList { get; set; } = default!;
 
                 /// <summary>
                 /// 获取或设置评论列表。
                 /// </summary>
-                [System.Xml.Serialization.XmlArray("Comments")]
+                [System.Xml.Serialization.XmlElement("Comments", Type = typeof(Types.Comment))]
                 public Types.Comment[] CommentList { get; set; } = default!;
             }
         }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Contact/ChangeContactEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Contact/ChangeContactEvent.cs
index e1c5fa9e..2c4f81eb 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Contact/ChangeContactEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Contact/ChangeContactEvent.cs
@@ -84,7 +84,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Events
                 /// <summary>
                 /// 获取或设置自定义字段列表。
                 /// </summary>
-                [System.Xml.Serialization.XmlArray("Item")]
+                [System.Xml.Serialization.XmlElement("Item", Type = typeof(Types.Attribute))]
                 public Types.Attribute[] AttributeList { get; set; } = default!;
             }
         }