I've confirmed that the mod works with 1.1 with only changes to info.json (I'm sure other suitable changes would work, but these did the trick for me):
7,9c7,9
< "factorio_version": "0.18",
< "dependencies": ["base >= 0.18.0"]
< }
---
> "factorio_version": "1.1",
> "dependencies": ["base"]
> }
Sorry it took a bit of time, I had to interleave game play with other activities.