How to update DisplayName of AAD Security Group in SPO UserInformationList

Dear SPO-Community

Scenario:

AAD Security Group is used for permissions on SPO Sites.

AAD Security Group got renamed in AAD.

The DisplayName of the Group got not updated in SPO.

Attempts:

I've tried to change the DisplayName with PowerShell (Microsoft.Online.SharePoint.PowerShell) but I couldn't manage to do it. An Update-SPOUser Command would be great... with the Set-SPOUser it seems not to be possible.

Thanks in advance,

Michael