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.
import logging
import traceback
from localstack.config import PORT_DYNAMODB, DATA_DIR
from localstack.constants import DEFAULT_PORT_DYNAMODB_BACKEND
from localstack.utils.aws import aws_stack
from localstack.utils.common import mkdir, wait_for_port_open
from localstack.services import install
from localstack.services.infra import get_service_protocol, start_proxy_for_service, do_run
from localstack.services.install import ROOT_PATH
LOGGER = logging.getLogger(__name__)
def check_dynamodb(expect_shutdown=False, print_error=False):