Why the latest version I can get for my windows is still 0.2?

Pytorch has provided windows support for version 0.4 several months ago.
I have tried pip install --upgrade torch and follow the instructions form the official website:
pip3 install torchvision
However, the version I got is still 0.2.
Why is that? And what should I do to fix it?

You installed torchvision, not pytorch.