Lightning struck my apartment, can they raise the rent after renovations when the contract is through April 1, 2023?

My rental apartment has major lightning strike damage from smoke and fire. They are fixing that, and are also choosing to do major renovations to the whole apartment, new appliances, carpet, cabinets, that weren't damaged by the fire. My current lease is through April 1, 2023 for $715 and they want to raise my rent to $900 once the renovations are completed by early 2022. Are they able to do that, or is this contract date for $715 binding, regardless.