diff --git a/phasespace/__init__.py b/phasespace/__init__.py
index 6e9df600..fa9f10ce 100644
--- a/phasespace/__init__.py
+++ b/phasespace/__init__.py
@@ -5,7 +5,7 @@
 
 __author__ = """Albert Puig Navarro"""
 __email__ = 'albert.puig@cern.ch'
-__version__ = '0.8.0'
+__version__ = '0.9.0'
 
 __all__ = ['generate', 'Particle']
 
diff --git a/setup.cfg b/setup.cfg
index bd0b8591..348a0add 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.0
+current_version = 0.9.0
 commit = True
 tag = True
 tag_name = '{new_version}'
@@ -19,7 +19,7 @@ universal = 1
 exclude = docs
 
 [aliases]
-# Define setup.py command aliases here
 
 [tool:pytest]
-norecursedirs=tests/helpers
+norecursedirs = tests/helpers
+
diff --git a/setup.py b/setup.py
index b93d2966..86a09336 100644
--- a/setup.py
+++ b/setup.py
@@ -55,6 +55,6 @@
         test_suite='tests',
         tests_require=test_requirements,
         url='https://github.com/zfit/phasespace',
-        version='0.8.0',
+        version='0.9.0',
         zip_safe=False,
         )