diff --git a/conf.py b/conf.py
index 559bff8..28055ed 100644
--- a/conf.py
+++ b/conf.py
@@ -10,8 +10,8 @@
 project = 'pyMonet'
 copyright = '2017, Przemyslaw Jan Pietrzak'
 author = 'Przemyslaw Jan Pietrzak'
-version = '0.9.0'
-release = '0.9.0'
+version = '0.9.1'
+release = '0.9.1'
 language = None
 exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
 pygments_style = 'sphinx'
diff --git a/setup.py b/setup.py
index 9bcc03d..a630000 100644
--- a/setup.py
+++ b/setup.py
@@ -4,12 +4,12 @@
 setup(
   name='pymonet',
   packages=['pymonet'],
-  version='0.9.0',
+  version='0.9.1',
   description='High abstract python library for functional programming. Contains algebraic data structures known from Haskell or Scala.',
   author='Przemyslaw Jan Pietrzak',
   author_email='przemyslaw.jan.pietrzak@gmail.com',
   url='https://github.com/przemyslawjanpietrzak/pyMonet',
-  download_url='https://github.com/przemyslawjanpietrzak/pyMonet/archive/0.9.0.tar.gz',
+  download_url='https://github.com/przemyslawjanpietrzak/pyMonet/archive/0.9.1.tar.gz',
   keywords=['functional-programming', 'monads', 'functors', 'semigroups'],
   classifiers=[],
 )