diff --git a/deepl.el b/deepl.el
index c5c1ae6..362e4f4 100644
--- a/deepl.el
+++ b/deepl.el
@@ -1,6 +1,6 @@
 ;;; deepl.el --- Elisp library for the DeepL API  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2023  Shen, Jen-Chieh
+;; Copyright (C) 2023-2024  Shen, Jen-Chieh
 
 ;; Author: Shen, Jen-Chieh <jcs090218@gmail.com>
 ;; Maintainer: Shen, Jen-Chieh <jcs090218@gmail.com>