To update the logo follow the below steps:

• Navigate to the 'Organisations' tile and go to 'your organisation'. 
• Select the 'Edit' pencil icon

• Select the image you would like to replace the existing logo with and upload this.
  • Note - the image will need to meet the dimensions of less than or equal to 500 x 500 px.  

This change would typically take up to 5 days for the caching to clear and the new logo to be seen on all docs.