diff --git a/lisp/org-cycle.el b/lisp/org-cycle.el
index f4d84f505..828c84cd0 100644
--- a/lisp/org-cycle.el
+++ b/lisp/org-cycle.el
@@ -1,6 +1,6 @@
 ;;; org-cycle.el --- Visibility cycling of Org entries -*- lexical-binding: t; -*-
 ;;
-;; Copyright (C) 2020, 2023-2020 Free Software Foundation, Inc.
+;; Copyright (C) 2020-2023 Free Software Foundation, Inc.
 ;;
 ;; Maintainer: Ihor Radchenko <yantar92 at gmail dot com>
 ;; Keywords: folding, visibility cycling, invisible text
diff --git a/lisp/org-fold-core.el b/lisp/org-fold-core.el
index 4f737af4e..0855e6f39 100644
--- a/lisp/org-fold-core.el
+++ b/lisp/org-fold-core.el
@@ -1,6 +1,6 @@
 ;;; org-fold-core.el --- Folding buffer text -*- lexical-binding: t; -*-
 ;;
-;; Copyright (C) 2020, 2023-2020 Free Software Foundation, Inc.
+;; Copyright (C) 2020-2023 Free Software Foundation, Inc.
 ;;
 ;; Author: Ihor Radchenko <yantar92 at gmail dot com>
 ;; Keywords: folding, invisible text
diff --git a/lisp/org-fold.el b/lisp/org-fold.el
index 93429bb30..1b7ca22b0 100644
--- a/lisp/org-fold.el
+++ b/lisp/org-fold.el
@@ -1,6 +1,6 @@
 ;;; org-fold.el --- Folding of Org entries -*- lexical-binding: t; -*-
 ;;
-;; Copyright (C) 2020, 2023-2020 Free Software Foundation, Inc.
+;; Copyright (C) 2020-2023 Free Software Foundation, Inc.
 ;;
 ;; Author: Ihor Radchenko <yantar92 at gmail dot com>
 ;; Keywords: folding, invisible text