diff --git a/exwm-cm.el b/exwm-cm.el
index 1c33f87..9228477 100644
--- a/exwm-cm.el
+++ b/exwm-cm.el
@@ -1,6 +1,6 @@
 ;;; exwm-cm.el --- Compositing Manager for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2016-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2016-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-config.el b/exwm-config.el
index 4454ea5..b47a9ba 100644
--- a/exwm-config.el
+++ b/exwm-config.el
@@ -1,6 +1,6 @@
 ;;; exwm-config.el --- Predefined configurations  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-core.el b/exwm-core.el
index 9e28291..7e37a71 100644
--- a/exwm-core.el
+++ b/exwm-core.el
@@ -1,6 +1,6 @@
 ;;; exwm-core.el --- Core definitions  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-floating.el b/exwm-floating.el
index 189acc4..115dd3b 100644
--- a/exwm-floating.el
+++ b/exwm-floating.el
@@ -1,6 +1,6 @@
 ;;; exwm-floating.el --- Floating Module for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-input.el b/exwm-input.el
index b493b93..17ee6ec 100644
--- a/exwm-input.el
+++ b/exwm-input.el
@@ -1,6 +1,6 @@
 ;;; exwm-input.el --- Input Module for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-layout.el b/exwm-layout.el
index 6275b79..cb7ad56 100644
--- a/exwm-layout.el
+++ b/exwm-layout.el
@@ -1,6 +1,6 @@
 ;;; exwm-layout.el --- Layout Module for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-manage.el b/exwm-manage.el
index d657b4d..a7866f1 100644
--- a/exwm-manage.el
+++ b/exwm-manage.el
@@ -1,7 +1,7 @@
 ;;; exwm-manage.el --- Window Management Module for  -*- lexical-binding: t -*-
 ;;;                    EXWM
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-randr.el b/exwm-randr.el
index c028c30..7acceb1 100644
--- a/exwm-randr.el
+++ b/exwm-randr.el
@@ -1,6 +1,6 @@
 ;;; exwm-randr.el --- RandR Module for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-systemtray.el b/exwm-systemtray.el
index 35010ee..3d0990e 100644
--- a/exwm-systemtray.el
+++ b/exwm-systemtray.el
@@ -1,7 +1,7 @@
 ;;; exwm-systemtray.el --- System Tray Module for  -*- lexical-binding: t -*-
 ;;;                        EXWM
 
-;; Copyright (C) 2016-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2016-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-workspace.el b/exwm-workspace.el
index 8d11126..4da97d9 100644
--- a/exwm-workspace.el
+++ b/exwm-workspace.el
@@ -1,6 +1,6 @@
 ;;; exwm-workspace.el --- Workspace Module for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm-xim.el b/exwm-xim.el
index 5530c87..6a3b888 100644
--- a/exwm-xim.el
+++ b/exwm-xim.el
@@ -1,6 +1,6 @@
 ;;; exwm-xim.el --- XIM Module for EXWM  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2019 Free Software Foundation, Inc.
+;; Copyright (C) 2019-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 
diff --git a/exwm.el b/exwm.el
index a2fbd03..112f42d 100644
--- a/exwm.el
+++ b/exwm.el
@@ -1,6 +1,6 @@
 ;;; exwm.el --- Emacs X Window Manager  -*- lexical-binding: t -*-
 
-;; Copyright (C) 2015-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
 
 ;; Author: Chris Feng <chris.w.feng@gmail.com>
 ;; Maintainer: Chris Feng <chris.w.feng@gmail.com>