pkg_resources.VersionConflict when using sceptre with sagemaker

Hi,

sagemaker requires packaging>=20 but scpetre requires 16.8 or below. Both have conflict when I try to use them together.

`pkg_resources.VersionConflict: (packaging 20.9 (c:\users\c279782\appdata\local\programs\python\python36\lib\site-packages), Requirement.parse('packaging==16.8'`

Is there a workaround ?

**What I have done?**

I installed stepfunctions from source . I thought removing sagemaker from required packages would resolve my problem but it seems like sagemaker is strictly required.