diff --git a/README.rst b/README.rst
index afa1a62e1..a9f432897 100644
--- a/README.rst
+++ b/README.rst
@@ -109,7 +109,7 @@ code. Please instead use the current number in the FAQ.
 Copyright and license
 ---------------------
 
-Charliecloud is copyright © 2014–2022 Triad National Security, LLC and others.
+Charliecloud is copyright © 2014–2023 Triad National Security, LLC and others.
 
 This software was produced under U.S. Government contract 89233218CNA000001
 for Los Alamos National Laboratory (LANL), which is operated by Triad National
diff --git a/doc/conf.py b/doc/conf.py
index 4db32fd5f..6402c4f1b 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -50,7 +50,7 @@
 
 # General information about the project.
 project = u'Charliecloud'
-copyright = u'2014–2022, Triad National Security, LLC and others'
+copyright = u'2014–2023, Triad National Security, LLC and others'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the