diff --git a/debian/apertis/copyright b/debian/apertis/copyright
index b81cc11e6be3d2c6b993788c683198be73b98d4c..d68dd817ef21916e3517e3a0a91ff52ee5285b99 100644
--- a/debian/apertis/copyright
+++ b/debian/apertis/copyright
@@ -1,7 +1,7 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 
 Files: *
-Copyright: 2012-2016, 2018, 2019, Collabora Ltd.
+Copyright: 2012-2023, Collabora Ltd.
 License: MPL-2.0
 
 Files: tools/*
@@ -11,10 +11,13 @@ License: MPL-2.0
 Files: tools/ade
  tools/devroot-enter
  tools/import-debian-package
-Copyright: 2012-2016, 2018, 2019, Collabora Ltd.
+Copyright: 2012-2023, Collabora Ltd.
 License: MPL-2.0
 
 Files: doc/* doc/man/devroot-enter.1 doc/man/devroot-enter.pod tools/mountimage
-Copyright:
- 2012-2016 Collabora Ltd.
+Copyright: 2012-2023 Collabora Ltd.
 License: MPL-2.0
+ Licensed under the Mozilla Public License Version 2.0.
+ .
+ On Debian systems, the complete text of the Mozilla Public License
+ Version 2.0 can be found in /usr/share/common-licenses/MPL-2.0.