diff --git a/hb_server/apps/wf/filters.py b/hb_server/apps/wf/filters.py
index 7e2990c..742af75 100644
--- a/hb_server/apps/wf/filters.py
+++ b/hb_server/apps/wf/filters.py
@@ -16,7 +16,7 @@ class TicketFilterSet(filters.FilterSet):
         elif value == 'duty':
             queryset = queryset.filter(participant__contains=user.id).exclude(act_state__in=[Ticket.TICKET_ACT_STATE_FINISH, Ticket.TICKET_ACT_STATE_CLOSED])
         elif value == 'worked':
-            queryset = queryset.filter(ticketflow_ticket__participant=user).exclude(create_by=user)
+            queryset = queryset.filter(ticketflow_ticket__participant=user).exclude(create_by=user).order_by('-update_time').distinct()
         elif value == 'all':
             pass
         else: