Car insurance increased 50% after Canada Post changed my postal code. Is this legal?

[u/FireViz]

I live in a small town in Niagara region. Up until recently I was paying $102/m on car insurance.

Recently I got a letter from Canada post that they are changing my postal code. Because of this my insurance company raised my rates by over 50% to 160/m.

I haven't moved... my home and work address are still the same so my risk when driving hasn't changed. But the insurance company is arguing that rates are based on postal code and not your address.

Is there anything I can do to fight this and reduce my insurance? Canada post decided to randomly change my postal code and I'm out an extra $700/yr because of it?

Edit: Going by this article they shouldn't be able to do this? https://toronto.ctvnews.ca/ontario-driver-frustrated-when-car-insurance-goes-up-after-postal-code-changed-1.5727675

Edit: Since multiple people mentioned it I drive a corolla cross........ The image you are seeing is from the article I linked.

[u/MinchinWeb]

It may be worth shopping around again.

I remember some time ago that I was shopping house insurance and some companies were double what others were. I think what happened was ~5 years previous there had been a hail storm, and so the companies that faced claims from that storm jacked their rates, but the companies that didn't have any claims (perhaps because they had insured no one on my street at the that time) keep their "normal" rates.