diff --git a/src/window.py b/src/window.py
index 7c3e771..72153b1 100644
--- a/src/window.py
+++ b/src/window.py
@@ -4,8 +4,7 @@
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+# the Free Software Foundation, version 3 of the License only.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -15,7 +14,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
-# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-License-Identifier: GPL-3.0-only
 
 from gi.repository import GLib, Gtk, Adw, Gdk, Gio
 import subprocess