It's not unusual for Canadian releases to be a week later than the US Street Date.
Reasons vary, but packaging and language are among them, having a single major wholesaler and distributor (Entertainment One - eOne) is probably also a factor.

For those who will say "It's more than a week after the US" one must take into consideration that movie releases are normally on Tuesdays, which happens to fall on Christmas Day & New Years day, making January 8Th the first available non-holiday "Tuesday".