diff --git a/_doc/ChangeLog.md b/_doc/ChangeLog.md
index ad6c3e85..663f71c4 100644
--- a/_doc/ChangeLog.md
+++ b/_doc/ChangeLog.md
@@ -9,7 +9,7 @@
 - fix: 微信支付同步V3接口金额空指针问题
 - fix: 订单支付成功重复更新问题
 - fix: 优化自动分账没有默认分账组时的处理
-## [v3.0.0.beta4] 2024-12-22
+## [v3.0.0.beta3] 2024-12-22
 - 新增: 支持支付宝分账功能
 - 新增: 支持微信分账功能
 - 新增: 支持分账发起和分账完结功能
diff --git a/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/ChannelParam.java b/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/ChannelParam.java
index e21f7ad0..d4baa75e 100644
--- a/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/ChannelParam.java
+++ b/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/ChannelParam.java
@@ -8,7 +8,7 @@ import org.dromara.daxpay.single.sdk.util.JsonUtil;
  * @author xxm
  * @since 2023/12/17
  */
-public interface ChannelParam extends SortMapParam {
+public interface ChannelParam {
 
     /**
      * 转换成字符串
diff --git a/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/SortMapParam.java b/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/SortMapParam.java
deleted file mode 100644
index 1b41294e..00000000
--- a/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/SortMapParam.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.dromara.daxpay.single.sdk.param;
-
-/**
- * 标示字段可以转换为MAP进行排序
- * @author xxm
- * @since 2024/2/8
- */
-public interface SortMapParam {
-}
diff --git a/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/trade/pay/PayParam.java b/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/trade/pay/PayParam.java
index 3e57b074..bedbb591 100644
--- a/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/trade/pay/PayParam.java
+++ b/daxpay-single-sdk/src/main/java/org/dromara/daxpay/single/sdk/param/trade/pay/PayParam.java
@@ -9,6 +9,7 @@ import org.dromara.daxpay.single.sdk.code.PayMethodEnum;
 import org.dromara.daxpay.single.sdk.model.trade.pay.PayResultModel;
 import org.dromara.daxpay.single.sdk.net.DaxPayRequest;
 import org.dromara.daxpay.single.sdk.param.channel.AlipayParam;
+import org.dromara.daxpay.single.sdk.param.channel.UnionPayParam;
 import org.dromara.daxpay.single.sdk.param.channel.WechatPayParam;
 import org.dromara.daxpay.single.sdk.response.DaxPayResult;
 import org.dromara.daxpay.single.sdk.util.JsonUtil;
@@ -63,6 +64,7 @@ public class PayParam extends DaxPayRequest<PayResultModel> {
      * 支付扩展参数, json字符串格式
      * @see AlipayParam
      * @see WechatPayParam
+     * @see UnionPayParam
      */
     private String extraParam;