User Avatar Dimensions in REST Call

Hi,

When I am hitting the below REST url, the returning avatar is in dimentions 64x36

/restapi/vc/users/id/u_id/profiles/avatar/

/t5/image/serverpage/image-id/89i5C1F9A4F791EB9AB/image-dimensions/64x36/image-coordinates/0%2C0%2C240%2C240?v=mpbl-1

But I need it in 64x64, it is by default coming in 64x36, any suggestions.

Thanks