diff --git a/server/vbv_lernwelt/dashboard/graphql/types/attendance.py b/server/vbv_lernwelt/dashboard/graphql/types/attendance.py
index 01b41ac4..ac162f67 100644
--- a/server/vbv_lernwelt/dashboard/graphql/types/attendance.py
+++ b/server/vbv_lernwelt/dashboard/graphql/types/attendance.py
@@ -11,23 +11,23 @@ from vbv_lernwelt.notify.email.email_services import format_swiss_datetime
 
 
 class AttendanceSummary(graphene.ObjectType):
-    days_completed = graphene.Int()
-    participants_present = graphene.Int()
+    days_completed = graphene.Int(required=True)
+    participants_present = graphene.Int(required=True)
 
 
 class PresenceRecord(graphene.ObjectType):
-    course_session_id = graphene.ID()
-    generation = graphene.String()
-    circle_id = graphene.ID()
-    due_date = graphene.String()
-    participants_present = graphene.Int()
-    participants_total = graphene.Int()
-    cockpit_url = graphene.String()
+    course_session_id = graphene.ID(required=True)
+    generation = graphene.String(required=True)
+    circle_id = graphene.ID(required=True)
+    due_date = graphene.String(required=True)
+    participants_present = graphene.Int(required=True)
+    participants_total = graphene.Int(required=True)
+    cockpit_url = graphene.String(required=True)
 
 
 class AttendanceDayPresences(graphene.ObjectType):
-    records = graphene.List(PresenceRecord)
-    summary = graphene.Field(AttendanceSummary)
+    records = graphene.List(PresenceRecord, required=True)
+    summary = graphene.Field(AttendanceSummary, required=True)
 
 
 def attendance_day_presences(