diff --git a/src/CourseService/JsonRpcInterface/CourseServiceInterface.php b/src/CourseService/JsonRpcInterface/CourseServiceInterface.php
index 732ab8c..7f6aa19 100755
--- a/src/CourseService/JsonRpcInterface/CourseServiceInterface.php
+++ b/src/CourseService/JsonRpcInterface/CourseServiceInterface.php
@@ -36,6 +36,12 @@ interface CourseServiceInterface
      */
     public function appGetCourseList(array $params): array;
 
+    /**
+     * 官网获取课程列表，按更新时间最新在前
+     * @param array $params 获取参数
+     */
+    public function officialGetCourseList(array $params): array;
+
     /**
      * 获取课程详情
      * @param int $id 课程ID