Workday sensor - US Holiday

I gave the workday sensor a go early in the week, and it did not detect Thanksgiving for the US. This is my config. I have one for today and one for tomorrow. Do I need to include the holidays? Or are they part of the US?
It is Friday now, the tomorrow sensor shows it is Off, and today shows it is on. so the workdays work, but the holidays are not getting pulled in for the US. Am I missing something?

platform: workday
name: workday_tomorrow
days_offset: 1
country: US
workdays: [mon, tue, wed, thu, fri]
excludes: [sat, sun]
platform: workday
name: workday_today
country: US
workdays: [mon, tue, wed, thu, fri]
excludes: [sat, sun]

Both showed thatThursday (yesterday) was a work day when it was Thanksgiving in the US.

You need to add the exclusion of holidays.

platform: workday
name: workday_today
country: US
workdays: [mon, tue, wed, thu, fri]
excludes: [sat, sun, holiday]