diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.cs
index 6cd2b803..2b61d816 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.cs
@@ -11,9 +11,9 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.Models
         /// <summary>
         /// 获取或设置成员账号。
         /// </summary>
-        [Newtonsoft.Json.JsonProperty("userid")]
-        [System.Text.Json.Serialization.JsonPropertyName("userid")]
-        public string UserId { get; set; } = string.Empty;
+        [Newtonsoft.Json.JsonProperty("userid_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("userid_list")]
+        public IList<string>? UserIdList { get; set; }
 
         /// <summary>
         /// 获取或设置翻页标记。
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.json
index 71fc67f7..1756dce3 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/CgibinExternalContact/CgibinExternalContactBatchGetByUserRequest.json
@@ -1,5 +1,5 @@
 {
-    "userid": "rocky",
+    "userid_list": ["rocky"],
     "cursor": "",
     "limit": 100
 }