Change sort order of articles

[chansters]

I'm setting up my site using a series of articles instead of posts. For each of my articles, I've added a weight to the front matter. But the site is still sorting my articles by reverse date order (newest first). It doesn't seem to take into my account my weight.

For example, it's displaying my articles like this:

• Part 2 (date: '2020-02-01' | weight: 41)
• Part 1 (date: '2019-12-12' | weight: 40)

I'd like it show Part 1 first and then Part 2 etc.

Is there something I need to do differently?