Update order of relation items in Typeorm

is there a way to update order of related items in Typeorm?

For example:

First I’m saving item:

const item = new Item();
item.name = 'item';
item.relations = [related1,related2,related3];

this.dataSource.manager.save(item);

Later I want to update item:

const item = await this.dataSource.getRepository(Item)
            .findOne({
                where: { id: id  }
            });
item.name = 'updatedItem';
item.relations = [related3,related2,related1];

this.dataSource.manager.save(item);

Unfortunatelly, all changes are saved but relation order is still the same.

What am I doing wrong?