Can't install package using UPM

[caneva20]

The package can't be installed using Unity package manager (UPM)

'5.5' is not valid 'unity' attribute value. Expected '<year>.<version>'

To Reproduce
Steps to reproduce the behavior:

1. Go to Packages/manifest.json
2. Add the following line:
   "com.coffee.unmask": "https://github.com/mob-sakai/UnmaskForUGUI.git#1.1.1",

Environment:

• Platform: Editor Windows
• Unity: 2019.1.4f1
• UnmaskForUGUI: 1.1.1

[mob-sakai]

Hi @caneva20
Thank you for reporting.
I will fix it ASAP.

[mob-sakai]

1.1.2 is installable, but that doesn't work.