diff -Nru libstatistics-regression-perl-0.53+ds/debian/changelog libstatistics-regression-perl-0.53+ds/debian/changelog
--- libstatistics-regression-perl-0.53+ds/debian/changelog	2021-04-01 08:12:20.000000000 +0000
+++ libstatistics-regression-perl-0.53+ds/debian/changelog	2021-06-14 05:21:20.000000000 +0000
@@ -1,3 +1,9 @@
+libstatistics-regression-perl (0.53+ds-2) unstable; urgency=medium
+
+  * Fixing license statement: GPL-1+ instead of GPL-1.
+
+ -- Andrius Merkys <merkys@debian.org>  Mon, 14 Jun 2021 01:21:20 -0400
+
 libstatistics-regression-perl (0.53+ds-1) unstable; urgency=low
 
   * Initial release (Closes: #987585).
diff -Nru libstatistics-regression-perl-0.53+ds/debian/copyright libstatistics-regression-perl-0.53+ds/debian/copyright
--- libstatistics-regression-perl-0.53+ds/debian/copyright	2021-04-01 08:12:20.000000000 +0000
+++ libstatistics-regression-perl-0.53+ds/debian/copyright	2021-06-14 05:19:00.000000000 +0000
@@ -8,12 +8,17 @@
 
 Files: *
 Copyright: 2001, 2004, 2007, Ivo Welch <ivo.welch@yale.edu>
-License: GPL-1
+License: GPL-1+
 
 Files: debian/*
 Copyright: 2021, Andrius Merkys <merkys@debian.org>
-License: GPL-1
+License: GPL-1+
 
-License: GPL-1
+License: GPL-1+
+ 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 1, or (at your option)
+ any later version.
+ .
  On Debian systems, the complete text of version 1 of the GNU General
  Public License can be found in `/usr/share/common-licenses/GPL-1'.