I'm trying to fix/change page titles in the blog pages

We're using MOZ Pro for some SEO fixes, and one of the problems it's reporting is "duplicate page titles". And a couple of those results are the pages of the blog... not the main page, but like

https://predic******fits.com/blog/page/3/

the title is coming back as the title of the first post on the page... but not for all the pages?