You can update your organization's name or logo anytime by following these steps:
Click your organization’s name in the top-left menu. You can also reach there by hovering the cursor over Settings and clicking Organization
Click Manage -> Update profile
Enter the desired name and/or upload an image (square 1:1 format, max 10MB)
Click the Save button to save changes (the Save button will remain inactive/greyed out unless you make any changes), or click Cancel to revert to the previous settings