diff --git a/roncoo-education-common/roncoo-education-common-service/src/main/java/com/roncoo/education/common/pay/util/AliPayConfig.java b/roncoo-education-common/roncoo-education-common-service/src/main/java/com/roncoo/education/common/pay/util/AliPayConfig.java
index 90b4aa02cc56a0a2728e83c1775ade472400ecd9..f789d15d2bf80c3c337f8b5b1448bb244364dd28 100644
--- a/roncoo-education-common/roncoo-education-common-service/src/main/java/com/roncoo/education/common/pay/util/AliPayConfig.java
+++ b/roncoo-education-common/roncoo-education-common-service/src/main/java/com/roncoo/education/common/pay/util/AliPayConfig.java
@@ -34,7 +34,7 @@ public class AliPayConfig implements Serializable {
     /**
      * 签名类型；目前支持RSA2和RSA，推荐使用RSA2（服务商模式时：为服务商配置）
      */
-    private String signType;
+    private String signType = "RSA2";
 
     /**
      * 子商户-卖家支付宝用户ID（服务商模式时：必填）