Regex not working

When trying to use the dateparser module w/ AWS Lambda (Python 3.6, Zappa 0.44.3), I'm seeing an error in CloudWatch, after trying to import dateparser (the upper portion of this trace has been omitted):

File "/var/task/dateparser/__init__.py", line 4, in <module>
	from .date import DateDataParser
File "/var/task/dateparser/date.py", line 8, in <module>
	import regex as re
File "/var/task/regex.py", line 400, in <module>
	import _regex_core
File "/var/task/_regex_core.py", line 21, in <module>
	import _regex
ModuleNotFoundError: No module named '_regex'

Regex has versions newer than the one currently in lambda-packages (lambda-packages: 2016.8.27, regex (current): 2017.12.12), and appears to only be pre-built for python 2.7. Perhaps the solution is simply upgrading the pre-built regex? Including a pre-built version for python 3.6?

Start with the import chain in dateparser/init.py, date.py, regex.py, and _regex_core.py, then inspect the pre-built regex package used by lambda-packages. Reproduce the Python 3.6 import failure in AWS Lambda and verify that the packaged artifact provides a compatible _regex module; the issue is done when dateparser imports successfully there.