diff --git a/doc/source/conf.py b/doc/source/conf.py
index 91866c3f..18d519d8 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -18,7 +18,7 @@ import sphinx_rtd_theme
 # -- Project information -----------------------------------------------------
 
 project = 'airship-charts'
-copyright = '2020, Airship Charts Authors'
+copyright = '2020-2021, Airship Charts Authors'
 author = 'Airship Charts Authors'