The Bank of Canada will unveil new $5 and $10 polymer bills next week during an official ceremony in Ottawa.

Bank of Canada Governor Mark Carney and Finance Minister Jim Flaherty will be joined Tuesday by representatives from the Canadian Space Agency and VIA Rail Canada to mark the debut of the new bank notes.

The polymer bills -- the last in the new line of upgraded Canadian bank notes -- will include new security features intended to make it difficult to counterfeit bills.

The $100, $50 and $20 plastic bills that are in circulation have paid tribute to Canada’s veterans, medical innovations and the Amundsen icebreaker.

The new $5 bill is expected to include an image from Canada’s space program, while the $10 bill will depict a train.

Tuesday’s unveiling will complete the overhaul of Canada’s currency that started in 2011 with the $100 bill.

In addition to the anti-counterfeiting benefits, the Bank also says the polymer bills last longer than their traditional paper counterparts.