diff --git a/docs/CHANGES.rst b/docs/CHANGES.rst
index a02fbcc..380eb92 100644
--- a/docs/CHANGES.rst
+++ b/docs/CHANGES.rst
@@ -1,7 +1,7 @@
 Changelog
 ==============
 
-0.3.12 (unreleased)
+0.3.12 (2016-03-10)
 -------------------
 - support setting ret_type in __init__ [Brent Tubbs <brent.tubbs@gmail.com>]
 
diff --git a/setup.py b/setup.py
index 1e0e308..25a6fb6 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@ long_description = "\n\n".join(
 
 setup(
     name='croniter',
-    version='0.3.12.dev0',
+    version='0.3.12',
     py_modules=['croniter', ],
     description=(
         'croniter provides iteration for datetime '