diff --git a/DFDL/doc/license.txt b/DFDL/doc/license.txt
index 56f639c1acf579686bff1cd32ac8deb138bfa84e..81ac8648ae4a3b12ef4a0e5e4705207dcd43bc56 100644
--- a/DFDL/doc/license.txt
+++ b/DFDL/doc/license.txt
@@ -1,4 +1,4 @@
-Copyright (c) 1995-2021 held by the author(s).  All rights reserved.
+Copyright (c) 1995-2023 held by the author(s).  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions