diff --git a/src/Essensoft.Paylink.WeChatPay/V3/Domain/WebInfo.cs b/src/Essensoft.Paylink.WeChatPay/V3/Domain/WebInfo.cs
index 6a636cc63..8330a4dd0 100644
--- a/src/Essensoft.Paylink.WeChatPay/V3/Domain/WebInfo.cs
+++ b/src/Essensoft.Paylink.WeChatPay/V3/Domain/WebInfo.cs
@@ -43,6 +43,6 @@ public class WebInfo : WeChatPayObject
         /// <para>示例值：wx1234567890123456</para>
         /// </remarks>
         [JsonPropertyName("web_appid")]
-        public List<string> WebAppid { get; set; }
+        public string WebAppid { get; set; }
     }
 }