def finalize_headers(headers, access_token):
    """
    Args:
        - headers: (dict-like) HTTP headers
        - access_token: (str) SurveyMonkey access token

    Returns: (dict) headers updated with values that should be in all requests
    """
    new_headers = dict(headers)
    new_headers.update({
        'Authorization': 'Bearer {}'.format(access_token),
        'Content-Type': 'application/json'
    })
    return new_headers