diff --git a/CHANGES.rst b/CHANGES.rst
index 7ee9116..83e26a2 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,7 +2,7 @@
 CHANGES
 =======
 
-4.0.5 (unreleased)
+4.1.0 (2018-02-06)
 ------------------
 
 - Python 3 support.
diff --git a/setup.py b/setup.py
index 13d0095..c66aa87 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ def read(*rnames):
     return open(os.path.join(os.path.dirname(__file__), *rnames)).read()
 
 setup(name='shoobx.wfmc',
-      version='4.0.5.dev0',
+      version='4.1.0',
       author='Zope Corporation and Contributors',
       author_email='zope3-dev@zope.org',
       description="Workflow-Management Coalition Workflow Engine",