diff --git a/AUTHORS.rst b/AUTHORS.rst
index 085523c..64aa1d8 100644
--- a/AUTHORS.rst
+++ b/AUTHORS.rst
@@ -5,12 +5,13 @@ Credits
 Development Lead
 ----------------
 
-* Quentin Vaudaine
-* Boguta Maxime
+* Nicolas Baccelli
 
 Contributors
 ------------
 
-* Nicolas Baccelli
 * Jocelyn Griselle
 * Salem Harrache
+* Quentin Vaudaine
+* Boguta Maxime
+* Nicolas Baccelli
diff --git a/CHANGES.rst b/CHANGES.rst
index d7e6e32..bda4b2e 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -3,6 +3,15 @@
 Shiba : Python API for PriceMinister WebServices
 ================================================
 
+Version 1.2.0
+-------------------
+
+Released on XXX 2021
+
+- Reformat code using `black`
+- Compatibility to python 3.9
+- Removes python 3.4, 3.5
+
 Version 1.1.12
 -------------------
 
diff --git a/Makefile b/Makefile
index a689efc..5486e76 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ init:  ## Install the project in development mode (using virtualenv is highly re
 	# Useful to build the documentation
 	pip install sphinx sphinx-readable-theme
 	# Useful for dev
-	pip install tox ipdb jedi pytest pytest-cov flake8 wheel bumpversion httpie
+	pip install tox ipdb jedi pytest pytest-cov flake8 wheel bumpversion httpie black
 
 clean: clean-build clean-pyc clean-test  ## Remove all build, test, coverage and Python artifacts
 
diff --git a/README.rst b/README.rst
index b32c184..e6054c6 100644
--- a/README.rst
+++ b/README.rst
@@ -2,7 +2,7 @@ Shiba
 =====
 
 **Shiba** is a Python package that provides interfaces to **PriceMinister Web services**. Currently, all features works
-with *Python3.x*. (3.4, 3.5, 3.6, 3.7)
+with *Python3.x*. (3.6, 3.7, 3.8, 3.9)
 
 Shiba supports all the Web services introduced by the *PriceMinister developper blog*.
 
diff --git a/setup.cfg b/setup.cfg
index e12105e..5b677ed 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 [bumpversion]
 commit = True
 tag = True
-current_version = 1.1.12
+current_version = 1.2.0
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\.(?P<release>[a-z]+\d+))?
 serialize = 
 	{major}.{minor}.{patch}.{release}
diff --git a/setup.py b/setup.py
index 31aa06b..08d34c3 100644
--- a/setup.py
+++ b/setup.py
@@ -39,8 +39,8 @@ def read(fname):
 
 setup(
     name="Shiba",
-    author="Maxime Boguta",
-    author_email="maxime.boguta@epitech.eu",
+    author="Nicolas Baccelli",
+    author_email="nicolas.baccelli@abc-culturel.fr",
     version=version,
     url="https://github.com/ShibaAPI/shiba",
     packages=["shiba"],
diff --git a/tox.ini b/tox.ini
index 3b26fa9..24d4c8f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py34, py35, py36, py37
+envlist = py36, py37, py38, py39
 
 [testenv]
 passenv = LC_ALL LANG HOME TRAVIS SHIBA_API_PASSWORD SHIBA_API_LOGIN