diff --git a/doc/conf.py b/doc/conf.py
index 27ce2da2..4cdc306d 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -46,7 +46,7 @@
 
 # General information about the project.
 project = 'OpenSlide Python'
-copyright = '2010-2023 Carnegie Mellon University and others'
+copyright = '2010-2024 Carnegie Mellon University 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