I am having an issue with my google calendar where annual events, such as birthdays, are being displayed each month. For example if the two birthdays in my calendar are Oct 1st and Apr 12th, then on May 31st on my magic mirror it will say I have a birthday tomorrow (Oct 1 -> June 1) and in 11 days (Apr 12 -> June 12). Any ideas why this is happening?? Here is my calendar config.

config: {
    timeFormat: 'absolute',
    urgency: 0,
    getRelative: 0,
    calendars: [
        { //Work
        url:
        "https://calendar.google.com/calendar/ical/XXXXX.ics"
        },
        { //Life
        url:
        "https://calendar.google.com/calendar/ical/XXXXX.ics"
        },
        { //Canadian Holidays
	symbol: "calendar-check-o ",
	url: "webcal://www.calendarlabs.com/templates/ical/Canada-Holidays.ics"
	}
    ]
}