beam_PreCommit_PythonDocs failing (jinja2)

I'm guessing a new jinja2 release broke us (https://pypi.org/project/Jinja2/#history)

12:16:08 Traceback (most recent call last):
12:16:08 File "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_PythonDocs_Commit/src/sdks/python/test-suites/tox/pycommon/build/srcs/sdks/python/target/.tox-py38-docs/py38-docs/bin/sphinx-apidoc", line 7, in <module>
12:16:08 from sphinx.ext.apidoc import main
12:16:08 File "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_PythonDocs_Commit/src/sdks/python/test-suites/tox/pycommon/build/srcs/sdks/python/target/.tox-py38-docs/py38-docs/lib/python3.8/site-packages/sphinx/ext/apidoc.py", line 32, in <module>
12:16:08 from sphinx.cmd.quickstart import EXTENSIONS
12:16:08 File "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_PythonDocs_Commit/src/sdks/python/test-suites/tox/pycommon/build/srcs/sdks/python/target/.tox-py38-docs/py38-docs/lib/python3.8/site-packages/sphinx/cmd/quickstart.py", line 49, in <module>
12:16:08 from sphinx.util.template import SphinxRenderer
12:16:08 File "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_PythonDocs_Commit/src/sdks/python/test-suites/tox/pycommon/build/srcs/sdks/python/target/.tox-py38-docs/py38-docs/lib/python3.8/site-packages/sphinx/util/template.py", line 17, in <module>
12:16:08 from sphinx.jinja2glue import SphinxFileSystemLoader
12:16:08 File "/home/jenkins/jenkins-slave/workspace/beam_PreCommit_PythonDocs_Commit/src/sdks/python/test-suites/tox/pycommon/build/srcs/sdks/python/target/.tox-py38-docs/py38-docs/lib/python3.8/site-packages/sphinx/jinja2glue.py", line 16, in <module>
12:16:08 from jinja2 import FileSystemLoader, BaseLoader, TemplateNotFound, \
12:16:08 ImportError: cannot import name 'contextfunction' from 'jinja2' (/home/jenkins/jenkins-slave/workspace/beam_PreCommit_PythonDocs_Commit/src/sdks/python/test-suites/tox/pycommon/build/srcs/sdks/python/target/.tox-py38-docs/py38-docs/lib/python3.8/site-packages/jinja2/_init_.py)