I think the below KM will be helpful for you:
E-PUM Can I use the PUM Image with my PeopleTools Version? (Doc ID 2354462.1)
IMPORTANT! This image is delivered on PeopleSoft PeopleTools 8.56 but can be used with target environments on earlier PeopleTools releases beginning with 8.53. ...
But staying on 8.53 won't give the Tools features like Fluid Pages and Elastic Search.