Error when using forked python package

I successfully deployed a flask app.
I needed to change a file in one of the packages I was using, so I forked it in GitHub, made the changes, and switched to that version in my ide (pycharm). Flask app runs well locally.
Now when I deploy, I believe fly deploy is using the published package and not my forked version.
How can I require the use of my forked version and fix my fly deploy?
Thank you in advance!

Update:

fly ssh console
find / -name <package-name>

and the following returned:

/home/cnb/.pycache/layers/paketo-buildpacks_pip-install/packages/lib/python3.10/site-packages/<package-name>
/workspace/venv/lib/python3.9/site-packages/<package-name>
/layers/paketo-buildpacks_pip-install/packages/lib/python3.10/site-packages/<package-name>

Inspecting the python files at those locations,

/workspace/venv/lib/python3.9/site-packages/<package-name>
:arrow_up: contains the correct files that I modified

/layers/paketo-buildpacks_pip-install/packages/lib/python3.10/site-packages/<package-name>
:arrow_up: contains the original unmodified files