Why has coverage been locked to `==4.0.3` for two years? Why not `>=4.0.0`?

If I add localstack to my pipenv, I can't lock because of this unnecessary dependency.
return 'https' if USE_SSL else 'http'
def restore_persisted_data(apis):
    for api in apis:
        persistence.restore_persisted_data(api)
def register_signal_handlers():
    global SIGNAL_HANDLERS_SETUP
    if SIGNAL_HANDLERS_SETUP:
        return
    
    def signal_handler(signal, frame):
        stop_infra()
        os._exit(0)
    signal.signal(signal.SIGTERM, signal_handler)
    signal.signal(signal.SIGINT, signal_handler)
    SIGNAL_HANDLERS_SETUP = True
def is_debug():
    return os.environ.get('DEBUG', '').strip() not in ['', '0', 'false']
def do_run(cmd, asynchronous, print_output=False):
    sys.stdout.flush()
    if asynchronous:
        if is_debug():
            print_output = True
        outfile = subprocess.PIPE if print_output else None
        t = ShellCommandThread(cmd, outfile=outfile)
        t.start()
        TMP_THREADS.append(t)
        return t
    else:
        return run(cmd)
def start_proxy_for_service(service_name, port, default_backend_port, update_listener, quiet=False, params={}):