diff --git a/xuqm-bugcollect-service/src/main/java/com/xuqm/bugcollect/repository/LogIssueEventRepository.java b/xuqm-bugcollect-service/src/main/java/com/xuqm/bugcollect/repository/LogIssueEventRepository.java
index 922f3d3..a2bb0bb 100644
--- a/xuqm-bugcollect-service/src/main/java/com/xuqm/bugcollect/repository/LogIssueEventRepository.java
+++ b/xuqm-bugcollect-service/src/main/java/com/xuqm/bugcollect/repository/LogIssueEventRepository.java
@@ -25,7 +25,7 @@ public interface LogIssueEventRepository extends JpaRepository<LogIssueEventEnti
     Page<LogIssueEventEntity> findByAppKeyAndCreatedAtBetween(
             String appKey, LocalDateTime from, LocalDateTime to, Pageable pageable);
 
-    @Query("SELECT e.createdAt, COUNT(e), COUNT(DISTINCT e.userId) FROM LogIssueEventEntity e " +
+    @Query("SELECT MIN(e.createdAt), COUNT(e), COUNT(DISTINCT e.userId) FROM LogIssueEventEntity e " +
            "WHERE e.issueId = :issueId AND e.createdAt BETWEEN :from AND :to " +
            "GROUP BY FUNCTION('DATE', e.createdAt) ORDER BY FUNCTION('DATE', e.createdAt)")
     List<Object[]> findDailyCountsByIssueId(