diff --git a/libopenage/renderer/demo/util.cpp b/libopenage/renderer/demo/util.cpp
index b160e9251c..d94a0d6209 100644
--- a/libopenage/renderer/demo/util.cpp
+++ b/libopenage/renderer/demo/util.cpp
@@ -1,4 +1,4 @@
-// Copyright 2015-2023 the openage authors. See copying.md for legal info.
+// Copyright 2015-2024 the openage authors. See copying.md for legal info.
 
 #include "util.h"
 #include "renderer/uniform_input.h"
diff --git a/libopenage/renderer/demo/util.h b/libopenage/renderer/demo/util.h
index cfb19f665a..a584d94af9 100644
--- a/libopenage/renderer/demo/util.h
+++ b/libopenage/renderer/demo/util.h
@@ -1,4 +1,4 @@
-// Copyright 2023-2023 the openage authors. See copying.md for legal info.
+// Copyright 2023-2024 the openage authors. See copying.md for legal info.
 
 #pragma once