diff --git a/src/main/java/com/sqx/modules/course/service/impl/CourseCollectServiceImpl.java b/src/main/java/com/sqx/modules/course/service/impl/CourseCollectServiceImpl.java
index cd55f68f..5f5ccd29 100644
--- a/src/main/java/com/sqx/modules/course/service/impl/CourseCollectServiceImpl.java
+++ b/src/main/java/com/sqx/modules/course/service/impl/CourseCollectServiceImpl.java
@@ -120,7 +120,7 @@ public class CourseCollectServiceImpl extends ServiceImpl<CourseCollectDao, Cour
                         .eq(CourseCollect::getUserId, userId)
                         .eq(CourseCollect::getClassify, classify)
                         .isNotNull(CourseCollect::getCourseId)
-                        .select(CourseCollect::getCourseId, CourseCollect::getUserId).groupBy(CourseCollect::getCourseId))
+                        .select(CourseCollect::getCourseId, CourseCollect::getUserId))
                 .stream().map(CourseCollect::getCourseId).collect(Collectors.toSet());
 //        List<CourseCollect> collectList = baseMapper.selectByUserId(userId, classify);
 //        Set<Long> courseIdList = collectList.stream().map(CourseCollect::getCourseId).collect(Collectors.toSet());