diff --git a/tests/calendar.ics b/tests/calendar.ics
index 0e1ef40..9523ca9 100644
--- a/tests/calendar.ics
+++ b/tests/calendar.ics
@@ -315,9 +315,9 @@ BEGIN:VEVENT
 UID:be6dd0e3ca1bb6a44783ade61056b12c57325b5f
 DTSTAMP:20230819T152822Z
 DTSTART;TZID=/freeassociation.sourceforge.net/Europe/Berlin:
- 20240131T080000
+ 20250131T080000
 DTEND;TZID=/freeassociation.sourceforge.net/Europe/Berlin:
- 20240131T100000
+ 20250131T100000
 SEQUENCE:3
 SUMMARY:do laundry
 TRANSP:OPAQUE
@@ -328,8 +328,8 @@ END:VEVENT
 BEGIN:VEVENT
 UID:ba584c4a-5369-4d9e-9b6f-157a3abda095
 DTSTAMP:20230917T103047Z
-DTSTART;VALUE=DATE:20240301
-DTEND;VALUE=DATE:20240308
+DTSTART;VALUE=DATE:20250301
+DTEND;VALUE=DATE:20250308
 SEQUENCE:2
 SUMMARY:vacation
 TRANSP:OPAQUE