Increase storage size in RDS Read-replica

I am using terraform to create a RDS and a read replica. while creating RDS instance with resource “aws_db_instance” with size 100GB in allocated_storage . so it creates DB instance with 100GB and Read-replica with Same 100GB.

Now i want to increase RDS size if i update allocated_storage as 150 GB . it will update DB instance size but will it increase Read-replica storage aswell ? if not how to handle this ?

some advise will be helpful.