Error loading monoprice_custom

[ha-bnst]

Error after updating to:
Home Assistant 2023.6.0
Supervisor 2023.06.1
Operating System 10.2
Frontend 20230607.0 - latest

This error originated from a custom integration.

Logger: homeassistant.loader
Source: custom_components/monoprice_custom/init.py:4
Integration: Monoprice 6-Zone Amplifier Custom (documentation, issues)
First occurred: 11:08:05 AM (1 occurrences)
Last logged: 11:08:05 AM

Unexpected exception importing component custom_components.monoprice_custom
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/loader.py", line 813, in get_component
ComponentProtocol, importlib.import_module(self.pkg_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1206, in _gcd_import
File "", line 1178, in _find_and_load
File "", line 1149, in _find_and_load_unlocked
File "", line 690, in _load_unlocked
File "", line 940, in exec_module
File "", line 241, in _call_with_frames_removed
File "/config/custom_components/monoprice_custom/init.py", line 4, in
from pymonoprice import get_monoprice
File "/usr/local/lib/python3.11/site-packages/pymonoprice/init.py", line 9, in
from serial_asyncio import create_serial_connection, SerialTransport
File "/usr/local/lib/python3.11/site-packages/serial_asyncio/init.py", line 408, in
@asyncio.coroutine
^^^^^^^^^^^^^^^^^
AttributeError: module 'asyncio' has no attribute 'coroutine'