diff --git a/kursy/views.py b/kursy/views.py
index b4e618d..d3390a7 100644
--- a/kursy/views.py
+++ b/kursy/views.py
@@ -47,6 +47,8 @@ def get_calendar_events(request):
         event_page = EventPage.objects.live().filter(title=event["title"]).first()
         if event_page:
             event["url"] = event_page.url
+        if event_page.is_past:
+            event["color"] = "#666666"
 
     return JsonResponse(events_list, safe=False)