diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientRequestEncryptionExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientRequestEncryptionExtensions.cs
index 22124548..7745e351 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientRequestEncryptionExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientRequestEncryptionExtensions.cs
@@ -230,7 +230,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
                 string publicKey;
                 if (string.IsNullOrEmpty(request.WechatpaySerialNumber))
                 {
-                    // 如果未在请求中指定特定的平台公钥序列号，从管理器中取第一个
+                    // 如果未在请求中指定特定的平台公钥 ID，从管理器中取第一个
                     IEnumerable<PublicKeyEntry> entries = client.PlatformPublicKeyManager.AllEntries()
                         .Where(e => e.AlgorithmType == algorithmType);
                     if (!entries.Any())
@@ -244,7 +244,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
                 }
                 else
                 {
-                    // 如果已在请求中指定特定的平台公钥序列号，直接从管理器中取值
+                    // 如果已在请求中指定特定的平台公钥 ID，直接从管理器中取值
                     PublicKeyEntry? entry = client.PlatformPublicKeyManager.GetEntry(request.WechatpaySerialNumber!);
                     if (!entry.HasValue)
                     {
@@ -308,7 +308,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
                     if (client.PlatformPublicKeyManager is null)
                         throw new WechatTenpayException("Failed to encrypt request, because the platform public key manager is not initialized.");
 
-                    // 如果未在请求中指定特定的平台公钥序列号，从管理器中第一个
+                    // 如果未在请求中指定特定的平台公钥 ID，从管理器中第一个
                     IEnumerable<PublicKeyEntry> entries = await ((IPublicKeyManagerAsync)client.PlatformPublicKeyManager).AllEntriesAsync(cancellationToken).ConfigureAwait(false);
                     entries = entries.Where(e => e.AlgorithmType == algorithmType);
                     if (!entries.Any())
@@ -322,7 +322,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
                 }
                 else
                 {
-                    // 如果已在请求中指定特定的平台公钥序列号，直接从管理器中取值
+                    // 如果已在请求中指定特定的平台公钥 ID，直接从管理器中取值
                     PublicKeyEntry? entry = await ((IPublicKeyManagerAsync)client.PlatformPublicKeyManager).GetEntryAsync(request.WechatpaySerialNumber!, cancellationToken).ConfigureAwait(false);
                     if (!entry.HasValue)
                     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyEntry.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyEntry.cs
index b2014ebe..c6575684 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyEntry.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyEntry.cs
@@ -24,7 +24,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Settings
         public string AlgorithmType { get; }
 
         /// <summary>
-        /// 获取公钥序列号。
+        /// 获取公钥 ID。
         /// </summary>
         public string SerialNumber { get; }
 
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyManager.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyManager.cs
index bdda0919..95f06c0e 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyManager.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Settings/PublicKeyManager.cs
@@ -25,14 +25,14 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Settings
         void AddEntry(PublicKeyEntry entry);
 
         /// <summary>
-        /// 根据公钥序列号获取公钥实体。
+        /// 根据公钥 ID 获取公钥实体。
         /// </summary>
         /// <param name="serialNumber"></param>
         /// <returns></returns>
         PublicKeyEntry? GetEntry(string serialNumber);
 
         /// <summary>
-        /// 根据公钥序列号移除公钥实体。
+        /// 根据公钥 ID 移除公钥实体。
         /// </summary>
         /// <param name="serialNumber"></param>
         /// <returns></returns>
@@ -60,7 +60,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Settings
         Task AddEntryAsync(PublicKeyEntry entry, CancellationToken cancellationToken = default);
 
         /// <summary>
-        /// 异步根据公钥序列号获取公钥实体。
+        /// 异步根据公钥 ID 获取公钥实体。
         /// </summary>
         /// <param name="serialNumber"></param>
         /// <param name="cancellationToken"></param>
@@ -68,7 +68,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Settings
         Task<PublicKeyEntry?> GetEntryAsync(string serialNumber, CancellationToken cancellationToken = default);
 
         /// <summary>
-        /// 异步根据公钥序列号移除公钥实体。
+        /// 异步根据公钥 ID 移除公钥实体。
         /// </summary>
         /// <param name="serialNumber"></param>
         /// <param name="cancellationToken"></param>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayRequest.cs
index 5e250565..90b7080e 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayRequest.cs
@@ -8,15 +8,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
     public abstract class WechatTenpayRequest : CommonRequestBase, ICommonRequest
     {
         /// <summary>
-        /// 获取或设置微信请求使用的微信支付平台证书序列号。
-        /// </summary>
-        [Obsolete("后续版本该属性将被移除，请使用 `WechatpaySerialNumber` 属性替代。", error: true)]
-        [Newtonsoft.Json.JsonIgnore]
-        [System.Text.Json.Serialization.JsonIgnore]
-        public virtual string? WechatpayCertificateSerialNumber { get { return WechatpaySerialNumber; } set { WechatpaySerialNumber = value; } }
-
-        /// <summary>
-        /// 获取或设置微信请求使用的微信支付平台证书或公钥序列号。
+        /// 获取或设置微信请求使用的微信支付平台证书或公钥 ID。
         /// </summary>
         [Newtonsoft.Json.JsonIgnore]
         [System.Text.Json.Serialization.JsonIgnore]
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayResponse.cs
index d21d7a01..54ac6177 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/WechatTenpayResponse.cs
@@ -65,15 +65,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
         public string WechatpaySignatureType { get { return GetRawHeaders().GetFirstValueOrEmpty("Wechatpay-Signature-Type"); } }
 
         /// <summary>
-        /// 获取微信应答签名使用的微信支付平台证书序列号。
-        /// </summary>
-        [Obsolete("后续版本该属性将被移除，请使用 `WechatpaySerialNumber` 属性替代。", error: true)]
-        [Newtonsoft.Json.JsonIgnore]
-        [System.Text.Json.Serialization.JsonIgnore]
-        public string WechatpayCertificateSerialNumber { get { return WechatpaySerialNumber; } }
-
-        /// <summary>
-        /// 获取微信应答签名使用的微信支付平台证书或公钥序列号。
+        /// 获取微信应答签名使用的微信支付平台证书或公钥 ID。
         /// </summary>
         [Newtonsoft.Json.JsonIgnore]
         [System.Text.Json.Serialization.JsonIgnore]