diff --git a/CHANGES.rst b/CHANGES.rst
index 6f3e817..732cc63 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,7 +1,7 @@
 Changelog for Isso
 ==================
 
-0.10.4 (unreleased)
+0.10.4 (2016-04-12)
 -------------------
 
 - fix wrapper attribute when using data-isso-require-mail="true", #238
diff --git a/setup.py b/setup.py
index f739e09..b9a47d7 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ if (3, 0) <= sys.version_info < (3, 3):
 
 setup(
     name='isso',
-    version='0.10.4.dev0',
+    version='0.10.4',
     author='Martin Zimmermann',
     author_email='info@posativ.org',
     packages=find_packages(),