diff --git a/doc/CHANGELOG b/doc/CHANGELOG
index fbd932fdf..f2770a482 100644
--- a/doc/CHANGELOG
+++ b/doc/CHANGELOG
@@ -4,6 +4,14 @@ Redmine - project management software
 Copyright (C) 2006-2015  Jean-Philippe Lang
 http://www.redmine.org/
 
+== 2015-12-05 v3.1.3
+
+Defect #16948: Broken anonymous repository access for public projects with Apache 2.4 (redmine.pm)
+Defect #21328: pdf: Vietnamese Italic is not shown
+Defect #21419: Information leak in Atom feed
+Patch #21312: Fix exception in Redmine.pm when authenticating anonymous users
+Patch #21430: Simplified Chinese translation
+
 == 2015-11-14 v3.1.2
 
 * Defect #20992: Parent priority "Independent of subtasks" setting doesn't work
diff --git a/lib/redmine/version.rb b/lib/redmine/version.rb
index 148c3375c..150cce5bd 100644
--- a/lib/redmine/version.rb
+++ b/lib/redmine/version.rb
@@ -4,7 +4,7 @@ module Redmine
   module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 1
-    TINY  = 2
+    TINY  = 3
 
     # Branch values:
     # * official release: nil