diff --git a/CHANGELOG b/CHANGELOG
index 0f3e59dc0..79ab98a8c 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,7 +4,7 @@
 
 http://openslides.org
 
-Version 1.5.1 (unreleased)
+Version 1.5.1 (2014-03-31)
 ==========================
 [https://github.com/OpenSlides/OpenSlides/issues?milestone=15]
 
@@ -27,7 +27,7 @@ Other:
 - Fixed http status code when requesting a non-existing static page using
   Tornado web server.
 - Fixed error in main script when using other database engine.
-- Fixed error on motion PDF with nested lists
+- Fixed error on motion PDF with nested lists.
 
 
 Version 1.5 (2013-11-25)
diff --git a/openslides/__init__.py b/openslides/__init__.py
index 941ae0b71..2157b9ed7 100644
--- a/openslides/__init__.py
+++ b/openslides/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 VERSION = (1, 5, 1, 'final', 1)  # During development it is the next release
-RELEASE = False
+RELEASE = True
 
 
 def get_version(version=None, release=None):