Python precommits are failiing due to a pip error: "no such option: --process-dependency-links"

13:35:37 GLOB sdist-make: /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Phrase/src/sdks/python/setup.py
13:35:37 docs create: /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Phrase/src/sdks/python/target/.tox/docs
13:35:39 docs installdeps: Sphinx==1.6.5, sphinx_rtd_theme==0.2.4
13:35:39 ERROR: invocation failed (exit code 2), logfile: /home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Phrase/src/sdks/python/target/.tox/docs/log/docs-1.log
13:35:39 ERROR: actionid: docs
13:35:39 msg: getenv
13:35:39 cmdargs: ['/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Phrase/src/sdks/python/target/.tox/docs/bin/python', '/home/jenkins/jenkins-slave/workspace/beam_PreCommit_Python_Phrase/src/sdks/python/target/.tox/docs/bin/pip', 'install', '--retries', '10', '--process-dependency-links', 'Sphinx==1.6.5', 'sphinx_rtd_theme==0.2.4']
13:35:39 
13:35:39 
13:35:39 Usage:   
13:35:39   pip install [options] <requirement specifier> [package-index-options] ...
13:35:39   pip install [options] -r <requirements file> [package-index-options] ...
13:35:39   pip install [options] [-e] <vcs project url> ...
13:35:39   pip install [options] [-e] <local project path> ...
13:35:39   pip install [options] <archive url/path> ...
13:35:39 
13:35:39 no such option: --process-dependency-links