Change account code in Receipt class

Dear Experts,

We need to change remittance GL account code in receipt class on production please advice us how we can change it from database.

Is there any script or query which can update existing remittance eode without create a new bank account or receipt class. Also we try to change it form diagnostics examine but system not allow us.

Below are the print screen  for receipt class which we want to update:

Regards

Ayaz Iqbal