Problems with changing back to old version of energyplus (from 23.2 to 9.0.0) on grasshopper

I am using honeybee lagacy 0.66 but the version of energyplus installed in my computer is the latest. There is an error when running my programme due to the incompactability and hence I would like to chance the environment back to an older version. I already uninstalled the latest version of energyplus but the programme still tries to find the latest version of exe. What can I do to change it back. Thanksl