Not compatiable with Laravel 5.5

[jstnmthw]

Tried installing package via composer and got the following error:

Your requirements could not be resolved to an installable set of packages.

Problem 1
- Installation request for igaster/laravel_cities ^1.3 -> satisfiable by igaster/laravel_cities[v1.3].
- Conclusion: remove laravel/framework v5.5.2
- Conclusion: don't install laravel/framework v5.5.2
- igaster/laravel_cities v1.3 requires illuminate/contracts 5.1.|5.2.|5.3.|5.4. -> satisfiable by illuminate/contracts[v5.1.1, v5.1.13, v5.1.16, v5.1.20, v5.1.22, v5.1.25, v5.1.28, v5.1.30, v5.1.31, v5.1.41, v5.1.8, v5.2.0, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.32, v5.2.37, v5.2.43, v5.2.45, v5.2.6, v5.2.7, v5.3.0, v5.3.16, v5.3.23, v5.3.4, v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
- don't install illuminate/contracts v5.1.1|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.13|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.16|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.20|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.22|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.25|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.28|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.30|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.31|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.41|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.1.8|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.0|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.19|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.21|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.24|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.25|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.26|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.27|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.28|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.31|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.32|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.37|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.43|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.45|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.6|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.2.7|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.3.0|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.3.16|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.3.23|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.3.4|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.0|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.13|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.17|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.19|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.27|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.36|don't install laravel/framework v5.5.2
- don't install illuminate/contracts v5.4.9|don't install laravel/framework v5.5.2
- Installation request for laravel/framework (locked at v5.5.2, required as 5.5.*) -> satisfiable by laravel/framework[v5.5.2].

Installation failed, reverting ./composer.json to its original content.

[igaster]

Shoud be OK in latest version v1.3.1. You may try again to install it!