diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.cs
index 66f4beea..a5b99f5d 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.cs
@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 
 namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
@@ -28,6 +28,22 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Models
                         [Newtonsoft.Json.JsonProperty("value")]
                         [System.Text.Json.Serialization.JsonPropertyName("value")]
                         public string PictureMediaId { get; set; } = string.Empty;
+
+                        /// <summary>
+                        /// 获取或设置资质过期时间戳。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("expire_time")]
+                        [System.Text.Json.Serialization.JsonPropertyName("expire_time")]
+                        public long? ExpireTimestamp { get; set; }
+
+                        /// <summary>
+                        /// 获取或设置资质是否永久有效。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("is_permanent")]
+                        [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.NumericalNullableBooleanConverter))]
+                        [System.Text.Json.Serialization.JsonPropertyName("is_permanent")]
+                        [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Converters.NumericalNullableBooleanConverter))]
+                        public bool? IsPermanent { get; set; }
                     }
                 }
 
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.json
index b25b756e..13941b65 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenAddCategoryRequest.json
@@ -1,4 +1,4 @@
-{
+{
     "categories": [
         {
             "first": 8,
@@ -6,7 +6,9 @@
             "certicates": [
                 {
                     "key": "《因私出入境中介机构经营许可证》",
-                    "value": "media_id"
+                    "value": "media_id",
+                    "expire_time": 123456,
+                    "is_permanent": 1
                 }
             ]
         }
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenModifyCategoryRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenModifyCategoryRequest.json
index 3cb9f7b3..28fb6485 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenModifyCategoryRequest.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/CgibinWxopen/Category/CgibinWxopenModifyCategoryRequest.json
@@ -1,10 +1,12 @@
-{
+{
     "first": 8,
     "second": 39,
     "certicates": [
         {
             "key": "《因私出入境中介机构经营许可证》",
-            "value": ""
+            "value": "media_id",
+            "expire_time": 123456,
+            "is_permanent": 1
         }
     ]
 }