diff --git a/CHANGES.rst b/CHANGES.rst
index e3c63100..8f83c663 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,5 +1,11 @@
 .. -*- coding: utf-8 -*-
 
+0.3.21
+------
+
+* Add monospace font for label printer format command.
+
+
 0.3.20
 ------
 
diff --git a/tailbone/_version.py b/tailbone/_version.py
index 3d18f319..c0f83bb6 100644
--- a/tailbone/_version.py
+++ b/tailbone/_version.py
@@ -1,3 +1,3 @@
 # -*- coding: utf-8 -*-
 
-__version__ = u'0.3.20'
+__version__ = u'0.3.21'