Old version fuel-plugin-builder in pip repository

I have found that fuel-plugin-buulder has old version in pip repository

pip search fuel

mongoengine_fuel (1.0.3)             - Factory for MongoDB documents created with mongoengine
fuel-plugin-xenserver (0.1)          -
js.fuelux (2.5.0)                    - Fanstatic packaging for FuelUX
fuel-pdsh (1.0.0.dev21)              - Simple pure Python alternative to PDSH for OpenStack Fuel node.
fuel-tanker (0.0.0)                  - Tools for data-driven upgrade at fuel admin node
fuel-plugin-builder (3.0.0)          - Helps to create and build fuel plugins
 INSTALLED: 4.0.0
 LATEST:    3.0.0
python-fuelclient (7.0.0)            - Command line interface and Python API wrapper for Fuel.
fuel-tasklib (0.0.0)                 -
django-fuelsdk (0.2)                 - Django wrapper for the ExactTarget FuelSDK.
cne (0.1.4)                          - Get fuel price from cne api
fuelserve-mssql (0.1)                - A package to display a light fuelserve interface
fuel (0.1.1)                         - Data pipeline framework for machine learning
Kerosene (0.3.0)                     - Wrapper and downloader for fuel datasets
fuel-dev-tools (1.0.0)               - Tools that make it easier to develop and work with Mirantis OpenStack Fuel.
FuelSDK (0.9.3)                      - ExactTarget Fuel SDK for Python
django-social-auth-appsfuel (1.0.0)  - Appsfuel backend for django-social-auth
Fuel-menu (8.0.0)                    - Ncurses based console user interface to configure Fuel master node
fuel-tasks-validator (6.1.0)         - Tasks validation for Fuel

The current version 4.0.0
https://github.com/openstack/fuel-plugins