AttributeError: module 'periphery' has no attribute 'version'

[bullestock]

What were you doing?

After upgrading OctoPi, I tried to turn on my PSU.

What did you expect to happen?

I expected PSU Control to still work.

What happened instead?

The button does not react to clicks, and the log shows the above error message.

Version of OctoPrint-PSUControl

1.0.6

Operating System running OctoPrint

OctoPi 0.18.0

Printer model & used firmware incl. version

N/A

Link to octoprint.log with octoprnt.plugins.psucontrol set to DEBUG

https://gist.github.com/bullestock/7716608ee2e537d7262e7e5225b904ce