diff --git a/samples/SKIT.FlurlHttpClient.Wechat.Api.Sample_Net5/Controllers/WechatNotifyController.cs b/samples/SKIT.FlurlHttpClient.Wechat.Api.Sample_Net5/Controllers/WechatNotifyController.cs
index dd9ec531..3f562d46 100644
--- a/samples/SKIT.FlurlHttpClient.Wechat.Api.Sample_Net5/Controllers/WechatNotifyController.cs
+++ b/samples/SKIT.FlurlHttpClient.Wechat.Api.Sample_Net5/Controllers/WechatNotifyController.cs
@@ -48,11 +48,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Sample_Net5.Controllers
             // 文档：https://developers.weixin.qq.com/doc/offiaccount/Basic_Information/Access_Overview.html
 
             var client = _wechatApiHttpClientFactory.Create(appId);
-            bool valid = client.VerifyEventSignature(
-                callbackTimestamp: timestamp,
-                callbackNonce: nonce,
-                callbackSignature: signature
-            );
+            bool valid = client.VerifyEventSignatureForEcho(callbackTimestamp: timestamp, callbackNonce: nonce, callbackSignature: signature);
             if (!valid)
             {
                 return Content("fail");
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/WechatApiEventDeserializationTests.cs b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/WechatApiEventDeserializationTests.cs
index 70f49b4e..31d20646 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/WechatApiEventDeserializationTests.cs
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/WechatApiEventDeserializationTests.cs
@@ -16,9 +16,12 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.UnitTests
             string xml = "<xml><ToUserName><![CDATA[toUser]]></ToUserName><FromUserName><![CDATA[fromUser]]></FromUserName><CreateTime>1348831860</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[this is a test]]></Content><MsgId>1234567890123456</MsgId></xml>";
 
             var xDoc = XDocument.Parse(xml);
-            string @event = xDoc.Root!.Element("MsgType")!.Value.ToUpper();
+            string msgType = xDoc.Root!.Element("MsgType")!.Value;
 
-            Assert.Equal("TEXT", @event);
+            Assert.Equal("TEXT", msgType, ignoreCase: true);
+
+            var eventModel = TestClients.Instance.DeserializeEventFromXml(xml);
+            Assert.Equal("TEXT", eventModel.MessageType, ignoreCase: true);
         }
 
         [Fact(DisplayName = "反序列化 TEXT 事件")]