[CentOS] pip on C7

I am trying to install the python-onvif package on C7.

I did: pip install onvif Requirement already satisfied (use --upgrade to upgrade): onvif in /usr/lib/python2.7/site-packages Requirement already satisfied (use --upgrade to upgrade): suds>=0.4 in /usr/lib/python2.7/site-packages (from onvif) Requirement already satisfied (use --upgrade to upgrade): suds-passworddigest in /usr/lib/python2.7/site-packages (from onvif) You are using pip version 8.1.2, however version 19.0.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.

How do I get it to go ahead and install ? Requirements are met. I don't desire to upgrade.

Thanks,

Jerry