diff --git a/COPYING.adoc b/COPYING.adoc
index 4b4a3257..57a9f63e 100644
--- a/COPYING.adoc
+++ b/COPYING.adoc
@@ -1,4 +1,4 @@
-Copyright © 2001-2023
+Copyright © 2001-2024
 Contributors to the Freedoom project.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/graphics/text/create_caption b/graphics/text/create_caption
index 22bc0507..ea080594 100755
--- a/graphics/text/create_caption
+++ b/graphics/text/create_caption
@@ -11,7 +11,7 @@ import os
 font = ImageFont.load_default()
 
 
-txt1 = "© 2001-2023"
+txt1 = "© 2001-2024"
 txt2 = os.environ["VERSION"]
 background_image = Image.open(sys.argv[1])
 background_image.load()
diff --git a/manual/manual-es.adoc b/manual/manual-es.adoc
index 422785e0..2a17240e 100644
--- a/manual/manual-es.adoc
+++ b/manual/manual-es.adoc
@@ -937,7 +937,7 @@ la página web del proyecto Freedoom en https://github.com/freedoom/freedoom.git
 [[licence]]
 === Licencia BSD modificada (inglés)
 
-Copyright © 2001-2023
+Copyright © 2001-2024
 Contributors to the Freedoom project.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/manual/manual-fr.adoc b/manual/manual-fr.adoc
index 5b699800..c3f870aa 100644
--- a/manual/manual-fr.adoc
+++ b/manual/manual-fr.adoc
@@ -661,7 +661,7 @@ https://github.com/freedoom/freedoom .
 [[licence]]
 === BSD 3-Clause copyright licence
 
-Copyright © 2001-2023
+Copyright © 2001-2024
 Contributors to the Freedoom project.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/manual/manual.adoc b/manual/manual.adoc
index f3379e16..1a3b1410 100644
--- a/manual/manual.adoc
+++ b/manual/manual.adoc
@@ -903,7 +903,7 @@ Freedoom’s website project page at https://github.com/freedoom/freedoom.github
 [[licence]]
 === BSD 3-Clause copyright licence
 
-Copyright © 2001-2023
+Copyright © 2001-2024
 Contributors to the Freedoom project.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without