Change the Python code in the __about__.py module so that `__version__`
    contains the new value.

def update_version_module(check_name, old_ver, new_ver):
    """
    Change the Python code in the __about__.py module so that `__version__`
    contains the new value.
    """
    version_file = get_version_file(check_name)
    contents = read_file(version_file)

    contents = contents.replace(old_ver, new_ver)
    write_file(version_file, contents)