diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 428ac79..6b6b4df 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,11 @@
 Release History
 ===============
 
+0.6.7 (2017-02-21)
+------------------
+
+* bugfix: added missing a dependency in the setup.py file.
+
 0.6.6 (2017-02-20)
 ------------------
 
diff --git a/docs/conf.py b/docs/conf.py
index 185f2ee..5eae879 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -50,7 +50,7 @@ copyright = u'2012-2017, Cédric Bonhomme'
 # The short X.Y version.
 version = '0.6'
 # The full version, including alpha/beta/rc tags.
-release = '0.6.6'
+release = '0.6.7'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index 50af05d..2f1a59c 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ scripts = [
     'bin/steganalysis-statistics'
 ]
 
-requires = ['pillow', 'piexif']
+requires = ['pillow', 'piexif', 'crayons']
 
 with open('README.rst', 'r') as f:
     readme = f.read()
@@ -36,7 +36,7 @@ with open('CHANGELOG.rst', 'r') as f:
 
 setup(
     name='Stegano',
-    version='0.6.6',
+    version='0.6.7',
     author='Cédric Bonhomme',
     author_email='cedric@cedricbonhomme.org',
     packages=packages,