If you wait until Monday (June 1, 2020) Canada Post parcel labels will be cheaper.
Regular and Expedited parcel for Canada will see the fuel surcharge drop another 2%
Out of country Tracked Packet and Expedited Parcel will see a 1% drop.
The new rates are in effect June 1 to July 5.
https://www.canadapost.ca/web/en/kb/details.page?article=fuel_surcharges_on_m