Upgrade pip to ver18 on anaconda

I will answer my own question. I got the answer thanks to one of the comments from abarnert who suggested conda-forge.

Run the commands below;

conda config --add channels conda-forge 
conda update pip

A bit different here but I'm using Linux.

Even though I had conda-forge in my channel list, I still couldn't just run conda update pip to update. I had to run the following to install that specific version.

conda install pip=18.0