Mexican President Enrique Peña Nieto has been pushing for the visa requirement to be lifted.
"The visa situation between Canada and Mexico will be resolved, finished, kaput," Dion said at a press conference on Friday, as quoted by The Wall Street Journal.
According to Huffington Post Canada, Canada's foreign minister confirmed to reporters that the visa requirement would be lifted, but gave no specific time frame.
Mexico’s foreign minister did not address the issue.
Canada’s current Prime Minister Justin Trudeau promised to let go of the visa requirement during his election campaign last fall.