diff --git a/Makefile b/Makefile
index e1d1e03..dbfdfdd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 2021-2023 Jim Porter
+# Copyright (C) 2021-2024 Jim Porter
 
 # This file is NOT part of GNU Emacs.
 
diff --git a/taco-tests.el b/taco-tests.el
index abf588f..87de154 100644
--- a/taco-tests.el
+++ b/taco-tests.el
@@ -1,6 +1,6 @@
 ;;; taco-tests.el --- Tests for taco -*- lexical-binding: t -*-
 
-;; Copyright (C) 2021-2023 Jim Porter
+;; Copyright (C) 2021-2024 Jim Porter
 
 ;; Author: Jim Porter
 ;; URL: https://github.com/jimporter/taco
diff --git a/taco.el b/taco.el
index 99c4fce..f55418e 100644
--- a/taco.el
+++ b/taco.el
@@ -1,6 +1,6 @@
 ;;; taco.el --- Tool-aware compilation commands -*- lexical-binding: t -*-
 
-;; Copyright (C) 2021-2023 Jim Porter
+;; Copyright (C) 2021-2024 Jim Porter
 
 ;; Author: Jim Porter
 ;; URL: https://github.com/jimporter/taco