I trying to update but it's reading as "already installed".

I trying to update but it's reading as "already installed". It's not. It still at v4.0.7.
You can actually see it from your website (https://premium.wpmudev.org/hub/my-websites/) it's asking to update but when I do it even from there, it says that it's already done.
Please can you help? Thank you! Esther