diff --git a/CHANGES.rst b/CHANGES.rst
index 7916f8cf..569fe47d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@
 Changes to mtools
 =================
 
+version 1.6.3
+~~~~~~~~~~~~~
+ * Require minimum of Python 3.6 in setup.py (#778)
+
+Thanks to @stennie and @sindbach for contributions to this release.
+
 version 1.6.2
 ~~~~~~~~~~~~~
  * Update documentation to reference pip3 instead of pip (#774)
diff --git a/mtools/version.py b/mtools/version.py
index 99c0d7f7..b1103e1c 100644
--- a/mtools/version.py
+++ b/mtools/version.py
@@ -1,4 +1,4 @@
 #!/usr/bin/env python3
 """Mtools version."""
 
-__version__ = '1.6.3-dev'
+__version__ = '1.6.3'