ERROR: Could not find a version that satisfies the requirement vtk>=9.1.0, No matching distribution found for vtk>=9.1.0 on Docker  #52

I'm installing Trame and VTK on a docker image, but I get the following error:

`------
=> ERROR [5/5] RUN pip install -r /tmp/requirements.txt && rm -rf /tmp && adduser --disabled-password 4.1s

[5/5] RUN pip install -r /tmp/requirements.txt && rm -rf /tmp && adduser --disabled-password --no-create-home trame-user:
#9 3.557 ERROR: Could not find a version that satisfies the requirement vtk>=9.1.0
#9 3.558 ERROR: No matching distribution found for vtk>=9.1.0
#9 3.905 WARNING: You are using pip version 20.3.1; however, version 23.0.1 is available.
#9 3.905 You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command.`

the content of my requirements.txt file is:

trame>=2.0.0 vtk>=9.1.0

the content of my Dockerfile is:
`
FROM python:3.9.0-alpine3.12
ENV PYTHONUNBUFFERED 1

COPY ./requirements.txt /tmp/requirements.txt
COPY ./app /app
WORKDIR /app
EXPOSE 8000

RUN pip install -r /tmp/requirements.txt &&
rm -rf /tmp &&
adduser
--disabled-password
--no-create-home
trame-user
ENV PATH="/py/bin:$PATH"
USER trame-user
`
I get the same error when trying to install it(requirements) on a python virtual environment

Can anyone help?
Thank you.