diff --git a/CHANGELOG b/CHANGELOG
index 3760447eb0..1b062a6158 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+Version 6.4.0 - 2022-05-02
+* Bug fixes (see mercurial logs for details)
 * Add approving employee on refunds
 * Add support for Python 3.10
 * Remove support for Python 3.6
diff --git a/COPYRIGHT b/COPYRIGHT
index 88308a539a..d0b4a3655d 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,5 +1,5 @@
-Copyright (C) 2020-2021 B2CK
-Copyright (C) 2020-2021 Cédric Krier
+Copyright (C) 2020-2022 B2CK
+Copyright (C) 2020-2022 Cédric Krier
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/tryton.cfg b/tryton.cfg
index e67d7d9961..c193ff1e57 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -1,5 +1,5 @@
 [tryton]
-version=6.3.0
+version=6.4.0
 depends:
     account
     account_payment