diff --git a/backend/src/main/java/com/qqchen/deploy/backend/notification/dto/template/BaseTemplateConfigDTO.java b/backend/src/main/java/com/qqchen/deploy/backend/notification/dto/template/BaseTemplateConfigDTO.java
index e187e119..c63fddaa 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/notification/dto/template/BaseTemplateConfigDTO.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/notification/dto/template/BaseTemplateConfigDTO.java
@@ -18,7 +18,7 @@ import lombok.Data;
 @Data
 @JsonTypeInfo(
     use = JsonTypeInfo.Id.NAME,
-    include = JsonTypeInfo.As.PROPERTY,
+    include = JsonTypeInfo.As.EXTERNAL_PROPERTY,
     property = "channelType"
 )
 @JsonSubTypes({