Deploy uvicorn with gunicorn

How can I change the default port like 8001 when running through gunicorn?
My config to run gunicorn -w 4 -k uvicorn.workers.UvicornWorker project.main:app

According to gunicorn’s documentation, there is the -b HOST:PORT (or --bind=HOST:PORT) option for that. Does that work for you?

No. Option --bind start gunicorn how server WSGI application. Found the solution in the source code gunicorn. You must specify the environment variable PORT. For development that activate venv and give command export PORT=8001. For production with systemd service, add string in file config service Environment="PORT=8001"