Sure. Let's say the package name is "package_name", then in the requirements.txt add the line `package_name==2.0.3` to only use version 2.0.3, or `package_name>=2.0.3` to use version 2.0.3 or newer.

I can also give a more helpful answer if you specify what packages need to be what versions.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence