The name of the project is a free text string, you can change it to whatever you want. The real details are in the "interpreter path" when you go and edit an interpreter definition.

Click the cog wheel and select "Show All..."

Now you can see the real path.
I suspect the name just wasn't updated when you updated anaconda, but the Python version is actually the same as what you see in the command line. You can confirm this by running this from within pycharm:
import sys
print(sys.version)
If you see the old version, you can just add a new interpreter to PyCharm with the correct path to your Python 3.6 environment.