Dear Umbraco Team

Im trying to update media item url. i can get the media Item umbracofile properties via

 IMedia mediaItem = mediaService.GetById(1227);
var mediaItemProp = mediaItem.Properties;
foreach (var mediaProp in mediaItemProp)
{
    if (mediaProp.Alias == "umbracoFile")
    {
        foreach (var value in mediaProp.Values)
        {
            <h1>@value.EditedValue</h1>
        }
    }
}

but EditedValue is readonly. Is there another way to update media item url ?