opuscleaner-clean fails

[bhaddow]

Running opuscleaner-clean (using python 3.8.18) immediately fails

(opuscleaner) [lofn]bhaddow: opuscleaner-clean data/train-parts/HPLT-v1.1.bs-en.filters.json 
Traceback (most recent call last):
  File "/home/shared/bhaddow/anaconda3/envs/opuscleaner/bin/opuscleaner-clean", line 5, in <module>
    from opuscleaner.clean import main
  File "/mnt/startiger0/saga/raid0/bhaddow/code/OpusCleaner/opuscleaner/clean.py", line 25, in <module>
    from opuscleaner import logging
  File "/mnt/startiger0/saga/raid0/bhaddow/code/OpusCleaner/opuscleaner/logging.py", line 115, in <module>
    class Logger:
  File "/mnt/startiger0/saga/raid0/bhaddow/code/OpusCleaner/opuscleaner/logging.py", line 119, in Logger
    stack: deque[UUID]
TypeError: 'type' object is not subscriptable
(opuscleaner) [lofn]bhaddow: python --version
Python 3.8.18

I cannot install the dependencies in Python 3.10