diff --git a/docs/conf.py b/docs/conf.py
index a7b4832..1e61a46 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -10,7 +10,7 @@
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
 
 project = 'Named Data Link State Routing Protocol (NLSR)'
-copyright = 'Copyright © 2014-2022 Named Data Networking Project.'
+copyright = 'Copyright © 2014-2023 Named Data Networking Project.'
 author = 'Named Data Networking Project'
 
 # The short X.Y version.