missmatch between ubuntu:bionic on gitlab ci and a virtual machine

  gitlab-ci, pypi, python-3.x

I have a virtual machine using ubuntu bionic and when I try to install lxml from pypi.org it downloads the next wheel.

lxml-4.6.3-cp36-cp36m-manylinux1_x86_64.whl (5.5MB)

But, in a gitlab pipeline, using the image: ubuntu:bionic I got the next one

lxml-4.6.3-cp36-cp36m-manylinux2014_x86_64.whl (6.3 MB)

Why does it happens? Thank you in advance

Source: Python-3x Questions