diff --git a/COPYING b/COPYING
index ec99857..7b02224 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-  Copyright (C) 2000-2010 PMSF IT Consulting Pierre R. Mai
+  Copyright (C) 2000-2013 PMSF IT Consulting Pierre R. Mai
 
   Permission is hereby granted, free of charge, to any person obtaining
   a copy of this software and associated documentation files (the
diff --git a/deflate.asd b/deflate.asd
index 0a74f71..ca31e53 100644
--- a/deflate.asd
+++ b/deflate.asd
@@ -1,6 +1,6 @@
 ;;;; Deflate --- RFC 1951 Deflate Decompression
 ;;;;
-;;;; Copyright (C) 2000-2010 PMSF IT Consulting Pierre R. Mai.
+;;;; Copyright (C) 2000-2013 PMSF IT Consulting Pierre R. Mai.
 ;;;;
 ;;;; Permission is hereby granted, free of charge, to any person obtaining
 ;;;; a copy of this software and associated documentation files (the
diff --git a/deflate.lisp b/deflate.lisp
index 7d4d69c..515598c 100644
--- a/deflate.lisp
+++ b/deflate.lisp
@@ -1,6 +1,6 @@
 ;;;; Deflate --- RFC 1951 Deflate Decompression
 ;;;;
-;;;; Copyright (C) 2000-2010 PMSF IT Consulting Pierre R. Mai.
+;;;; Copyright (C) 2000-2013 PMSF IT Consulting Pierre R. Mai.
 ;;;;
 ;;;; Permission is hereby granted, free of charge, to any person obtaining
 ;;;; a copy of this software and associated documentation files (the