How to downgrade mongo shell version from 4.4 to 3.6?

Working with Data Developer Tools
5

Hello Chris. I’m sorry for my late reply.
I’m using Ubuntu-20.04.
Running mongo --version output MongoDB shell version v4.4.6
Running mongod --version output db version v3.6.8

I was installing mongodb with this article.
I was stuck at running sudo apt install mongodb-org because of something mongodb-tools , Sorry I don’t remember it clearly. Seems like mongodb shell upgraded but mongodb version didn’t.

Thanks for your help.