Support for Spree 4 about spree_themes HOT 3 OPEN

I get this while trying to integrate running bundler

Fetching https://github.com/vinsol-spree-contrib/spree_themes.git The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, runbundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`.
Fetching gem metadata from https://rubygems.org/...........
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies.......
Bundler could not find compatible versions for gem "spree_core":
In snapshot (Gemfile.lock):
spree_core (= 4.1.4)

In Gemfile:
spree (~> 4.1) was resolved to 4.1.4, which depends on
spree_core (= 4.1.4)

spree_auth_devise (~> 4.1) was resolved to 4.1.0, which depends on
  spree_core (>= 4.1.0.alpha, < 5.0)

spree_auth_devise (~> 4.1) was resolved to 4.1.0, which depends on
  spree_extension was resolved to 0.0.9, which depends on
    spree_core

spree_gateway (~> 3.7) was resolved to 3.7.4, which depends on
  spree_core (>= 3.1.0, < 5.0)

spree_multi_vendor was resolved to 1.5.2, which depends on
  spree_core (>= 3.2.0, < 5.0)

vinsol_spree_themes was resolved to 0.0.1, which depends on
  spree_core (>= 3.2.0, < 4.0)

Running bundle update will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.

`

from spree_themes.

I also need it

from spree_themes.

Please update for Spree 4!

from spree_themes.