diff --git a/LICENSE.md b/LICENSE.md
index 1bd26d1..2f5275d 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 # MIT License
 
-Copyright (c) 2018-2022 Dale Higgs
+Copyright (c) 2018-2023 Dale Higgs
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index fb38ba6..65f7c6f 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ our [GitHub Repository][repository].
 
 MIT License
 
-Copyright (c) 2018-2022 Dale Higgs
+Copyright (c) 2018-2023 Dale Higgs
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -131,7 +131,7 @@ SOFTWARE.
 [i386-shield]: https://img.shields.io/badge/i386-yes-green.svg
 [issue]: https://github.com/hassio-addons/addon-nut/issues
 [license-shield]: https://img.shields.io/github/license/hassio-addons/addon-nut.svg
-[maintenance-shield]: https://img.shields.io/maintenance/yes/2022.svg
+[maintenance-shield]: https://img.shields.io/maintenance/yes/2023.svg
 [nut-acknowledgements]: https://networkupstools.org/acknowledgements.html
 [nut-compatible]: https://networkupstools.org/stable-hcl.html
 [nut-features]: https://networkupstools.org/features.html
diff --git a/nut/.README.j2 b/nut/.README.j2
index dc9ffeb..b1c8568 100644
--- a/nut/.README.j2
+++ b/nut/.README.j2
@@ -75,7 +75,7 @@ If you are more interested in stable releases of our add-ons:
 [discord]: https://discord.me/hassioaddons
 [forum-shield]: https://img.shields.io/badge/community-forum-brightgreen.svg
 [forum]: https://community.home-assistant.io/t/community-hass-io-add-on-network-ups-tools/68516
-[maintenance-shield]: https://img.shields.io/maintenance/yes/2022.svg
+[maintenance-shield]: https://img.shields.io/maintenance/yes/2023.svg
 [nut-acknowledgements]: https://networkupstools.org/acknowledgements.html
 [nut-compatible]: https://networkupstools.org/stable-hcl.html
 [nut-features]: https://networkupstools.org/features.html
diff --git a/nut/DOCS.md b/nut/DOCS.md
index 18bfe3e..e0943be 100644
--- a/nut/DOCS.md
+++ b/nut/DOCS.md
@@ -334,7 +334,7 @@ check [the contributor's page][contributors].
 
 MIT License
 
-Copyright (c) 2018-2022 Dale Higgs
+Copyright (c) 2018-2023 Dale Higgs
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal