ValueError in dataclasses.py - using staking-deposit-cli

[andrewk]

My project uses https://github.com/ethereum/staking-depo...y_handling

When trying execute it, I get the following:

Error:
Running deposit-cli...
Traceback (most recent call last):
  File "/blockchain/staking-deposit-cli/./staking_deposit/deposit.py", line 4, in <module>
    from staking_deposit.cli.existing_mnemonic import existing_mnemonic
  File "/blockchain/staking-deposit-cli/venv/lib/python3.11/site-packages/staking_deposit/cli/existing_mnemonic.py", line 19, in <module>
    from staking_deposit.utils.validation import validate_int_range
  File "/blockchain/staking-deposit-cli/venv/lib/python3.11/site-packages/staking_deposit/utils/validation.py", line 24, in <module>
    from staking_deposit.credentials import (
  File "/blockchain/staking-deposit-cli/venv/lib/python3.11/site-packages/staking_deposit/credentials.py", line 14, in <module>
    from staking_deposit.key_handling.keystore import (
  File "/blockchain/staking-deposit-cli/venv/lib/python3.11/site-packages/staking_deposit/key_handling/keystore.py", line 62, in <module>
    @dataclass
     ^^^^^^^^^
  File "/usr/lib/python3.11/dataclasses.py", line 1220, in dataclass
    return wrap(cls)
           ^^^^^^^^^
  File "/usr/lib/python3.11/dataclasses.py", line 1210, in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/dataclasses.py", line 958, in _process_class
    cls_fields.append(_get_field(cls, name, type, kw_only))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/dataclasses.py", line 815, in _get_field
    raise ValueError(f'mutable default {type(f.default)} for field '
ValueError: mutable default <class 'staking_deposit.key_handling.keystore.KeystoreModule'> for field kdf is not allowed: use default_factory

I'm using Python 3.11.2 on a Raspberry PI 5.
Any idea how to fix this? Am I missing packages?