ICS not working after update to HA core-2021.9.7

[JaCoLJcL]

Hello,

after update to core-2021.9.7 i have this problem:

GUI not working:

Error
Failed to load the configuration interface

Info form manual config:
Platform error sensor.ics - cannot import name 'Calendar' from 'icalendar' (/usr/local/lib/python3.9/site-packages/icalendar/init.py)

LOG:
Logger: homeassistant.setup
Source: setup.py:179
First occurred: 8:52:52 (1 occurrences)
Last logged: 8:52:52

Setup failed for ics: Unable to import component: cannot import name 'Calendar' from 'icalendar' (/usr/local/lib/python3.9/site-packages/icalendar/init.py)

@KoljaWindeler