Install the latest version of seaborn (0.9.0) through pip

Apparently conda has not yet integrated seaborn 0.9.0 into it's default channel. You may still try to get it through conda-forge

conda install -c conda-forge seaborn 

You can also use pip from within the conda environment in use.

> activate
(base) > python -mpip install seaborn==0.9.0

I was having seaborn 0.8.0. This worked for me.

sudo -H pip install seaborn==0.9.0