The Canadian Union of Postal Workers (CUPW) says they will shift from a nationwide walkout to rotating strikes.

In a statement released late Thursday night, the union’s President says the change will start on Saturday Oct. 11 at 6 AM local time.

The announcement comes a day after the union met with the federal minister responsible for Canada Post.

“While this will start mail and parcels moving, while continuing our struggle for good collective agreements and a strong public postal service,” wrote Jan Simpson, CUPW National President.

“We did not take the decision to move to a nation-wide strike lightly,” added Simpson. “Postal workers would much rather have new collective agreements and be delivering mail instead of taking strike action.”

The union says it met with Joël Lightbound on Wednesday evening, voicing concerns about recently announced changes to the postal service’s mandate to overhaul its operations.

Among the changes are an expansion of community mailboxes and the closure of some rural post offices.

Locals that will be rotating out will be informed closer to the time of when they will take action, according to the statement.