diff --git a/CHANGES.rst b/CHANGES.rst
index 2fc47ff..40f49a9 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,7 +1,7 @@
 Change log
 ==========
 
-2.3.1 - unreleased
+2.3.1 - 2023-12-29
 ------------------
 
 * Fixed rare crasher in runmailer_pg when notifications list is empty.
diff --git a/RELEASE.rst b/RELEASE.rst
index 28cce67..208b3d3 100644
--- a/RELEASE.rst
+++ b/RELEASE.rst
@@ -4,9 +4,9 @@ Release process
 * Check that the master branching is passing all tests:
   https://github.com/pinax/django-mailer/actions/workflows/build.yml
 
-* In CHANGES.rst, change the 'Unreleased' heading to the new version, and commit.
+* In CHANGES.rst, change the 'Unreleased' heading to the new version.
 
-* Change the version in mailer/__init__.py, removing ``.dev1`` if necessary, and commit.
+* Change the version in mailer/__init__.py, removing ``.dev1`` if necessary, and commit with “Version bump …”
 
 * Release::
 
diff --git a/src/mailer/__init__.py b/src/mailer/__init__.py
index 0d533af..db3e009 100644
--- a/src/mailer/__init__.py
+++ b/src/mailer/__init__.py
@@ -1,6 +1,6 @@
 import warnings
 
-__version__ = "2.3"
+__version__ = "2.3.1"
 
 
 def get_priority(priority):