diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2dd4955..6f57efd 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,11 @@
 Release History
 ===============
 
+0.9.1 (2019-03-06)
+------------------
+
+* updated Pillow dependency in order to fix a bug when opening some PNG files.
+
 0.9.0 (2018-12-18)
 ------------------
 
diff --git a/setup.py b/setup.py
index 48c5a08..04e492b 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
 
 setup(
     name='Stegano',
-    version='0.9.0',
+    version='0.9.1',
     author='Cédric Bonhomme',
     author_email='cedric@cedricbonhomme.org',
     packages=packages,