diff --git a/doc/org-guide.org b/doc/org-guide.org
index f53555f65..8ad2d8eaa 100644
--- a/doc/org-guide.org
+++ b/doc/org-guide.org
@@ -10,7 +10,7 @@
 :copying:  t
 :END:
 
-Copyright \copy 2004--2022  Free Software Foundation, Inc.
+Copyright \copy 2004--2023  Free Software Foundation, Inc.
 
 #+begin_quote
 Permission is granted to copy, distribute and/or modify this document
diff --git a/testing/lisp/test-ob-clojure.el b/testing/lisp/test-ob-clojure.el
index 3a21498b4..267c2781c 100644
--- a/testing/lisp/test-ob-clojure.el
+++ b/testing/lisp/test-ob-clojure.el
@@ -1,6 +1,6 @@
 ;;; test-ob-clojure.el  -*- lexical-binding: t; -*-
 
-;; Copyright (c) 2018-2022 Free Software Foundation, Inc.
+;; Copyright (c) 2018-2023 Free Software Foundation, Inc.
 ;; Authors: stardiviner
 
 ;; This file is not part of GNU Emacs.
diff --git a/testing/lisp/test-ob-emacs-lisp.el b/testing/lisp/test-ob-emacs-lisp.el
index 7592ad7d4..a523e6bc1 100644
--- a/testing/lisp/test-ob-emacs-lisp.el
+++ b/testing/lisp/test-ob-emacs-lisp.el
@@ -1,6 +1,6 @@
 ;;; test-ob-emacs-lisp.el  -*- lexical-binding: t; -*-
 
-;; Copyright (c) 2012-2022 Free Software Foundation, Inc.
+;; Copyright (c) 2012-2023 Free Software Foundation, Inc.
 ;; Authors: Eric Schulte, Martyn Jago
 
 ;; This file is not part of GNU Emacs.
diff --git a/testing/lisp/test-ob-java.el b/testing/lisp/test-ob-java.el
index 65b7259d3..f823dc3b9 100644
--- a/testing/lisp/test-ob-java.el
+++ b/testing/lisp/test-ob-java.el
@@ -1,6 +1,6 @@
 ;;; test-ob-java.el --- tests for ob-java.el  -*- lexical-binding: t; -*-
 
-;; Copyright (c) 2020-2022 Free Software Foundation, Inc.
+;; Copyright (c) 2020-2023 Free Software Foundation, Inc.
 ;; Authors: Eric Schulte
 ;;          Dan Davison
 ;; Maintainer: Ian Martins <ianxm@jhu.edu>