diff --git a/docs/release_notes.rst b/docs/release_notes.rst
index d1c0b9d..35e1446 100755
--- a/docs/release_notes.rst
+++ b/docs/release_notes.rst
@@ -2,6 +2,11 @@
 .. role:: smaller
 .. role:: noteversion
 
+Version 0.4.2 :small:`03 April 2021`
+---------------------------------------
+Improved package structure, fixed minor performace issues, and fixed bugs. Added two new tutorials (corti & osteosarcoma) and 
+updated the previous tutorials with validation analyses.
+
 Version 0.4.1 :small:`24 August 2020`
 ---------------------------------------
 Changed the package structure and run flow of the scripts. Added anndata and scanpy support. Updated tutorials and implemented
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 016e1aa..09984a6 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,13 +1,15 @@
 cycler>=0.10.0
-cython
+Cython
 decorator>=4.3.2
 kiwisolver>=1.0.1
 matplotlib>=2.2
 networkx
 numpy
+POT
 pyparsing>=2.3.1
 python-dateutil>=2.8.0
-scikit-learn>=0.20.2
+scikit-learn>=0.22.1
 scipy
 six>=1.12.0
 scanpy
+altair
\ No newline at end of file
diff --git a/novosparc/__init__.py b/novosparc/__init__.py
index 382f97c..53a196f 100755
--- a/novosparc/__init__.py
+++ b/novosparc/__init__.py
@@ -1,14 +1,16 @@
 __author__ = ', '.join([
     'Nikos Karaiskos',
     'Mor Nitzan',
-    'Enes Senel'
+    'Enes Senel',
+    'Noa Moriel'
 ])
 __email__ = ', '.join([
     'nikolaos.karaiskos@mdc-berlin.de',
     'mornitzan@fas.harvard.edu',
-    'enes.senel@mdc-berlin.de'
+    'enes.senel@mdc-berlin.de',
+    'noa.moriel@mail.huji.ac.il'
 ])
-__version__ = '0.4.1'
+__version__ = '0.4.2'
 
 from . import plotting as pl
 from . import preprocessing as pp