Cannot update to PyTorch Nightly

Currently on stable and want to test out nightly. I use the command from the website
conda install pytorch torchvision torchaudio -c pytorch-nightly

but got the response

# All requested packages already installed.

I tried again with

conda update -all pytorch torchvision torchaudio -c pytorch-nightly

but the version of torch is still 1.12.0.

Uninstall your current PyTorch binary and reinstall the nightly. Alternatively, create a new virtual environment and install the nightly binary there.