diff --git a/scfs-api-service/src/main/java/com/czcb/scfs/api/service/echo/model/EchoResponse.java b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/echo/model/EchoResponse.java
index 3a3f664..af6eb58 100644
--- a/scfs-api-service/src/main/java/com/czcb/scfs/api/service/echo/model/EchoResponse.java
+++ b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/echo/model/EchoResponse.java
@@ -25,6 +25,12 @@ public class EchoResponse implements ApiResponse {
     @SerializedName("recode_info")
     private String recodeInfo;
 
+    /**
+     * 系统流水号
+     */
+    @SerializedName("sys_serial_no")
+    private String sysSerialNo;
+
     /**
      * 系统日期（YYYY-MM-DD）
      */