diff --git a/Makefile.am b/Makefile.am
index 43ea3f2b..2b0d6123 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `Wget' utility
-# Copyright (C) 1995-1997, 2006-2020 Free Software Foundation, Inc.
+# Copyright (C) 1995-1997, 2006-2021 Free Software Foundation, Inc.
 
 # 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
diff --git a/NEWS b/NEWS
index fbb6393e..f290575c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 GNU Wget NEWS -- history of user-visible changes.
 
-Copyright (C) 1997-2020 Free Software Foundation, Inc.
+Copyright (C) 1997-2021 Free Software Foundation, Inc.
 See the end for copying conditions.
 
 Please send GNU Wget bug reports to <bug-wget@gnu.org>.
diff --git a/README b/README
index fd41b479..c11ee403 100644
--- a/README
+++ b/README
@@ -60,7 +60,7 @@ the file AUTHORS for a list of major contributors, and the ChangeLogs
 for a detailed listing of all contributions.
 
 
-Copyright (C) 1995-2020 Free Software Foundation, Inc.
+Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
 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
diff --git a/README.checkout b/README.checkout
index 477e69a1..11a65436 100644
--- a/README.checkout
+++ b/README.checkout
@@ -161,7 +161,7 @@ Testing and development
  that bug, which might be tedious. Tests should only be run through GDB for that purpose.
 
 
- Copyright (C) 2008, 2010, 2014-2015, 2018-2020 Free Software
+ Copyright (C) 2008, 2010, 2014-2015, 2018-2021 Free Software
  Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later
  <https://www.gnu.org/licenses/gpl.html>.
diff --git a/bootstrap b/bootstrap
index 0ddf9856..55a65157 100755
--- a/bootstrap
+++ b/bootstrap
@@ -4,7 +4,7 @@ scriptversion=2019-01-04.17; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2020 Free Software Foundation, Inc.
+# Copyright (C) 2003-2021 Free Software Foundation, Inc.
 
 # 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
diff --git a/bootstrap.conf b/bootstrap.conf
index 7c9045ba..d9d036ee 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -1,5 +1,5 @@
 # bootstrap.conf - Bootstrap configuration.
-# Copyright (C) 2007-2012, 2018-2020 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012, 2018-2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Wget.
 #
diff --git a/build-aux/build_info.pl b/build-aux/build_info.pl
index 6c63b366..df442de2 100755
--- a/build-aux/build_info.pl
+++ b/build-aux/build_info.pl
@@ -2,7 +2,7 @@
 
 # Generate build_info.c.
 
-# Copyright (C) 2009-2011, 2018-2020 Free Software Foundation, Inc.
+# Copyright (C) 2009-2011, 2018-2021 Free Software Foundation, Inc.
 
 # 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
diff --git a/configure.ac b/configure.ac
index 9227f318..96adf13b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 dnl Template file for GNU Autoconf
-dnl Copyright (C) 1995-1997, 2001, 2007-2014, 2018-2020 Free Software
+dnl Copyright (C) 1995-1997, 2001, 2007-2014, 2018-2021 Free Software
 dnl Foundation, Inc.
 
 dnl This program is free software; you can redistribute it and/or modify
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 678d01a3..9e8b17d1 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2020 Free Software
+# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2021 Free Software
 # Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/doc/fdl.texi b/doc/fdl.texi
index 93db1ab7..f24ffd03 100644
--- a/doc/fdl.texi
+++ b/doc/fdl.texi
@@ -5,7 +5,7 @@
 @c hence no sectioning command or @node.
 
 @display
-Copyright @copyright{} 2000-2002, 2007-2008, 2015, 2018-2020 Free
+Copyright @copyright{} 2000--2002, 2007--2008, 2015, 2018--2021 Free
 Software Foundation, Inc.
 @uref{http://fsf.org/}
 
diff --git a/doc/texi2pod.pl b/doc/texi2pod.pl
index 02f0352e..a5f6b2c2 100755
--- a/doc/texi2pod.pl
+++ b/doc/texi2pod.pl
@@ -1,6 +1,6 @@
 #! /usr/bin/env perl
 
-#   Copyright (C) 1999-2001, 2003, 2007, 2009-2011, 2015, 2018-2020 Free
+#   Copyright (C) 1999-2001, 2003, 2007, 2009-2011, 2015, 2018-2021 Free
 #   Software Foundation, Inc.
 
 # This file is part of GCC.
diff --git a/doc/wget.texi b/doc/wget.texi
index cf877fe1..da1d8245 100644
--- a/doc/wget.texi
+++ b/doc/wget.texi
@@ -31,7 +31,7 @@ This file documents the GNU Wget utility for downloading network
 data.
 
 @c man begin COPYRIGHT
-Copyright @copyright{} 1996-2011, 2015, 2018-2020 Free Software
+Copyright @copyright{} 1996--2011, 2015, 2018--2021 Free Software
 Foundation, Inc.
 
 @iftex
diff --git a/fuzz/fuzzer.h b/fuzz/fuzzer.h
index fec4478a..a89e1f20 100644
--- a/fuzz/fuzzer.h
+++ b/fuzz/fuzzer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/glob_crash.c b/fuzz/glob_crash.c
index 53c305d2..239ed3e2 100644
--- a/fuzz/glob_crash.c
+++ b/fuzz/glob_crash.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/main.c b/fuzz/main.c
index 53e3a6de..b6157cd4 100644
--- a/fuzz/main.c
+++ b/fuzz/main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/run-afl.sh b/fuzz/run-afl.sh
index dcf3aa6f..e5053f5b 100755
--- a/fuzz/run-afl.sh
+++ b/fuzz/run-afl.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -eu
 
-# Copyright (c) 2017, 2019-2020 Free Software Foundation, Inc.
+# Copyright (c) 2017, 2019-2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Wget.
 #
diff --git a/fuzz/run-clang.sh b/fuzz/run-clang.sh
index 00b86223..bca049ad 100755
--- a/fuzz/run-clang.sh
+++ b/fuzz/run-clang.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -e
 #
-# Copyright (c) 2017, 2019-2020 Free Software Foundation, Inc.
+# Copyright (c) 2017, 2019-2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Wget.
 #
diff --git a/fuzz/wget_cookie_fuzzer.c b/fuzz/wget_cookie_fuzzer.c
index 1af989ed..a6e7e8e9 100644
--- a/fuzz/wget_cookie_fuzzer.c
+++ b/fuzz/wget_cookie_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_css_fuzzer.c b/fuzz/wget_css_fuzzer.c
index 5dc197a7..7553f8a1 100644
--- a/fuzz/wget_css_fuzzer.c
+++ b/fuzz/wget_css_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_ftpls_fuzzer.c b/fuzz/wget_ftpls_fuzzer.c
index 49307c4c..15ed1e90 100644
--- a/fuzz/wget_ftpls_fuzzer.c
+++ b/fuzz/wget_ftpls_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_html_fuzzer.c b/fuzz/wget_html_fuzzer.c
index 43675d6c..cf949ebe 100644
--- a/fuzz/wget_html_fuzzer.c
+++ b/fuzz/wget_html_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_netrc_fuzzer.c b/fuzz/wget_netrc_fuzzer.c
index 30882773..0b1386f2 100644
--- a/fuzz/wget_netrc_fuzzer.c
+++ b/fuzz/wget_netrc_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_ntlm_fuzzer.c b/fuzz/wget_ntlm_fuzzer.c
index 39088fb5..2ec78861 100644
--- a/fuzz/wget_ntlm_fuzzer.c
+++ b/fuzz/wget_ntlm_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2019, 2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_options_fuzzer.c b/fuzz/wget_options_fuzzer.c
index 08a37605..107a4796 100644
--- a/fuzz/wget_options_fuzzer.c
+++ b/fuzz/wget_options_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_progress_fuzzer.c b/fuzz/wget_progress_fuzzer.c
index e11444b5..a463f61b 100644
--- a/fuzz/wget_progress_fuzzer.c
+++ b/fuzz/wget_progress_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2019, 2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_read_hunk_fuzzer.c b/fuzz/wget_read_hunk_fuzzer.c
index dc1da249..a27b91dc 100644
--- a/fuzz/wget_read_hunk_fuzzer.c
+++ b/fuzz/wget_read_hunk_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2019-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_robots_fuzzer.c b/fuzz/wget_robots_fuzzer.c
index 159dc066..41b41d80 100644
--- a/fuzz/wget_robots_fuzzer.c
+++ b/fuzz/wget_robots_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/wget_url_fuzzer.c b/fuzz/wget_url_fuzzer.c
index 695704fa..51c22ebd 100644
--- a/fuzz/wget_url_fuzzer.c
+++ b/fuzz/wget_url_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2021 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/m4/wget.m4 b/m4/wget.m4
index 5605bc5d..c850ec74 100644
--- a/m4/wget.m4
+++ b/m4/wget.m4
@@ -1,5 +1,5 @@
 dnl Wget-specific Autoconf macros.
-dnl Copyright (C) 1995-2011, 2018-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2011, 2018-2021 Free Software Foundation, Inc.
 
 dnl This program is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
diff --git a/m4/wget_manywarnings.m4 b/m4/wget_manywarnings.m4
index 9bc5ee54..e182b044 100644
--- a/m4/wget_manywarnings.m4
+++ b/m4/wget_manywarnings.m4
@@ -1,5 +1,5 @@
 # wget_manywarnings.m4 serial 1
-dnl Copyright (C) 2016-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 2016-2021 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/po/POTFILES.in b/po/POTFILES.in
index e522dc43..2a7e417a 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,5 +1,5 @@
 # List of files which containing translatable strings.
-# Copyright (C) 1995-2011, 2018-2020 Free Software Foundation, Inc.
+# Copyright (C) 1995-2011, 2018-2021 Free Software Foundation, Inc.
 
 # Package source files
 src/connect.c
diff --git a/src/Makefile.am b/src/Makefile.am
index 322a3db5..23e840f8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-2011, 2015, 2018-2020 Free Software Foundation,
+# Copyright (C) 1995-2011, 2015, 2018-2021 Free Software Foundation,
 # Inc.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/src/connect.c b/src/connect.c
index ad7ba0b8..16d01026 100644
--- a/src/connect.c
+++ b/src/connect.c
@@ -1,5 +1,5 @@
 /* Establishing and handling network connections.
-   Copyright (C) 1995-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1995-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/connect.h b/src/connect.h
index 84535591..468abf02 100644
--- a/src/connect.h
+++ b/src/connect.h
@@ -1,5 +1,5 @@
 /* Declarations for connect.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/convert.c b/src/convert.c
index f422178b..683f7197 100644
--- a/src/convert.c
+++ b/src/convert.c
@@ -1,5 +1,5 @@
 /* Conversion of links to local files.
-   Copyright (C) 2003-2011, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 2003-2011, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/convert.h b/src/convert.h
index 531afbd7..a892d0f9 100644
--- a/src/convert.h
+++ b/src/convert.h
@@ -1,5 +1,5 @@
 /* Declarations for convert.c
-   Copyright (C) 2003-2006, 2009-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2003-2006, 2009-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/cookies.c b/src/cookies.c
index 6ddb9312..f8b66446 100644
--- a/src/cookies.c
+++ b/src/cookies.c
@@ -1,5 +1,5 @@
 /* Support for cookies.
-   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/cookies.h b/src/cookies.h
index 903db322..49175574 100644
--- a/src/cookies.h
+++ b/src/cookies.h
@@ -1,5 +1,5 @@
 /* Support for cookies.
-   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css-tokens.h b/src/css-tokens.h
index 40307ff2..4ce344aa 100644
--- a/src/css-tokens.h
+++ b/src/css-tokens.h
@@ -1,5 +1,5 @@
 /* Declarations for css.lex
-   Copyright (C) 2006, 2009-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2006, 2009-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css-url.c b/src/css-url.c
index eacd926c..1e3ae92f 100644
--- a/src/css-url.c
+++ b/src/css-url.c
@@ -1,5 +1,5 @@
 /* Collect URLs from CSS source.
-   Copyright (C) 1998, 2000-2003, 2009-2011, 2014-2015, 2018-2020 Free
+   Copyright (C) 1998, 2000-2003, 2009-2011, 2014-2015, 2018-2021 Free
    Software Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css-url.h b/src/css-url.h
index e8d7d1f3..13f1b233 100644
--- a/src/css-url.h
+++ b/src/css-url.h
@@ -1,5 +1,5 @@
 /* Declarations for css-url.c.
-   Copyright (C) 2006, 2009-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2006, 2009-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css.l b/src/css.l
index bae065de..dd8abc80 100644
--- a/src/css.l
+++ b/src/css.l
@@ -12,7 +12,7 @@
 %{
 /* Lex source for CSS tokenizing.
    Taken from http://www.w3.org/TR/CSS21/grammar.html#q2
-   Copyright (C) 2006, 2009-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2006, 2009-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/exits.c b/src/exits.c
index 56a7eb70..21c4c5cf 100644
--- a/src/exits.c
+++ b/src/exits.c
@@ -1,5 +1,5 @@
 /* Exit status handling.
-   Copyright (C) 2009-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2009-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
    This file is part of GNU Wget.
diff --git a/src/exits.h b/src/exits.h
index 169ade1c..2180d462 100644
--- a/src/exits.h
+++ b/src/exits.h
@@ -1,5 +1,5 @@
 /* Exit status related declarations.
-   Copyright (C) 2009-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2009-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp-basic.c b/src/ftp-basic.c
index 197cd837..ecc09016 100644
--- a/src/ftp-basic.c
+++ b/src/ftp-basic.c
@@ -1,5 +1,5 @@
 /* Basic FTP routines.
-   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp-ls.c b/src/ftp-ls.c
index bb257542..a1f1dced 100644
--- a/src/ftp-ls.c
+++ b/src/ftp-ls.c
@@ -1,5 +1,5 @@
 /* Parsing FTP `ls' output.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp-opie.c b/src/ftp-opie.c
index abe174b4..96c72d96 100644
--- a/src/ftp-opie.c
+++ b/src/ftp-opie.c
@@ -1,5 +1,5 @@
 /* Opie (s/key) support for FTP.
-   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp.c b/src/ftp.c
index a44bf04b..ea7621e0 100644
--- a/src/ftp.c
+++ b/src/ftp.c
@@ -1,5 +1,5 @@
 /* File Transfer Protocol support.
-   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp.h b/src/ftp.h
index 9958853d..f0ef5964 100644
--- a/src/ftp.h
+++ b/src/ftp.h
@@ -1,5 +1,5 @@
 /* Declarations for FTP support.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/gnutls.c b/src/gnutls.c
index 5706dbb4..d8e2530b 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -1,5 +1,5 @@
 /* SSL support via GnuTLS library.
-   Copyright (C) 2005-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hash.c b/src/hash.c
index 66095281..4e455457 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -1,5 +1,5 @@
 /* Hash tables.
-   Copyright (C) 2000-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2000-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hash.h b/src/hash.h
index b8f79654..147f0c19 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -1,5 +1,5 @@
 /* Hash table declarations.
-   Copyright (C) 2000, 2007-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2000, 2007-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/host.c b/src/host.c
index 353c1cc5..88f6845f 100644
--- a/src/host.c
+++ b/src/host.c
@@ -1,5 +1,5 @@
 /* Host name resolution and matching.
-   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/host.h b/src/host.h
index a199d262..b1e1f684 100644
--- a/src/host.h
+++ b/src/host.h
@@ -1,5 +1,5 @@
 /* Declarations for host.c
-   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hsts.c b/src/hsts.c
index 914d270e..ead5b728 100644
--- a/src/hsts.c
+++ b/src/hsts.c
@@ -1,5 +1,5 @@
 /* HTTP Strict Transport Security (HSTS) support.
-   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hsts.h b/src/hsts.h
index 7cc41e32..0df0212c 100644
--- a/src/hsts.h
+++ b/src/hsts.h
@@ -1,5 +1,5 @@
 /* Declarations for hsts.c
-   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-parse.c b/src/html-parse.c
index 63677324..b6153979 100644
--- a/src/html-parse.c
+++ b/src/html-parse.c
@@ -1,5 +1,5 @@
 /* HTML parser for Wget.
-   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-parse.h b/src/html-parse.h
index eae8e3c8..e690a8f4 100644
--- a/src/html-parse.h
+++ b/src/html-parse.h
@@ -1,5 +1,5 @@
 /* Declarations for html-parse.c.
-   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-url.c b/src/html-url.c
index b80cf269..2d79ca49 100644
--- a/src/html-url.c
+++ b/src/html-url.c
@@ -1,5 +1,5 @@
 /* Collect URLs from HTML source.
-   Copyright (C) 1998-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1998-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-url.h b/src/html-url.h
index abc7eddd..92168226 100644
--- a/src/html-url.h
+++ b/src/html-url.h
@@ -1,5 +1,5 @@
 /* Declarations for html-url.c.
-   Copyright (C) 1995-1997, 2009-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 1995-1997, 2009-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/http-ntlm.c b/src/http-ntlm.c
index ceba3b8e..2c3ee918 100644
--- a/src/http-ntlm.c
+++ b/src/http-ntlm.c
@@ -1,5 +1,5 @@
 /* NTLM code.
-   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
    Contributed by Daniel Stenberg.
 
diff --git a/src/http-ntlm.h b/src/http-ntlm.h
index de0c9ce0..67177c4d 100644
--- a/src/http-ntlm.h
+++ b/src/http-ntlm.h
@@ -1,7 +1,7 @@
 #ifndef __HTTP_NTLM_H
 #define __HTTP_NTLM_H
 /* Declarations for http_ntlm.c
-   Copyright (C) 1995-1997, 2000, 2007-2011, 2015, 2018-2020 Free
+   Copyright (C) 1995-1997, 2000, 2007-2011, 2015, 2018-2021 Free
    Software Foundation, Inc.
    Contributed by Daniel Stenberg.
 
diff --git a/src/http.c b/src/http.c
index 26e10d23..0525c2ab 100644
--- a/src/http.c
+++ b/src/http.c
@@ -1,5 +1,5 @@
 /* HTTP support.
-   Copyright (C) 1996-2012, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 1996-2012, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/http.h b/src/http.h
index 5eac0da1..f5878a06 100644
--- a/src/http.h
+++ b/src/http.h
@@ -1,5 +1,5 @@
 /* Declarations for HTTP.
-   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/init.c b/src/init.c
index aa526ded..a94f19f5 100644
--- a/src/init.c
+++ b/src/init.c
@@ -1,5 +1,5 @@
 /* Reading/parsing the initialization file.
-   Copyright (C) 1996-2012, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 1996-2012, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/init.h b/src/init.h
index a7619ce4..4a8e40ac 100644
--- a/src/init.h
+++ b/src/init.h
@@ -1,5 +1,5 @@
 /* Declarations for init.c.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/iri.c b/src/iri.c
index afdadf70..0d1b6567 100644
--- a/src/iri.c
+++ b/src/iri.c
@@ -1,5 +1,5 @@
 /* IRI related functions.
-   Copyright (C) 2008-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2008-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/iri.h b/src/iri.h
index c6b75e87..db95f6df 100644
--- a/src/iri.h
+++ b/src/iri.h
@@ -1,5 +1,5 @@
 /* Internationalization related declarations.
-   Copyright (C) 2008-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2008-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/log.c b/src/log.c
index 7de23eee..e191703f 100644
--- a/src/log.c
+++ b/src/log.c
@@ -1,5 +1,5 @@
 /* Messages logging.
-   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/log.h b/src/log.h
index 40d4d887..15126f8c 100644
--- a/src/log.h
+++ b/src/log.h
@@ -1,5 +1,5 @@
 /* Declarations for log.c.
-   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/main.c b/src/main.c
index c84f6e41..e506b211 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,5 +1,5 @@
 /* Command line parsing.
-   Copyright (C) 1996-2015, 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 1996-2015, 2018-2021 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/metalink.c b/src/metalink.c
index 81cd1b39..da486d8e 100644
--- a/src/metalink.c
+++ b/src/metalink.c
@@ -1,5 +1,5 @@
 /* Metalink module.
-   Copyright (C) 2015, 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015, 2018-2021 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/metalink.h b/src/metalink.h
index b20a4212..3324a61c 100644
--- a/src/metalink.h
+++ b/src/metalink.h
@@ -1,5 +1,5 @@
 /* Declarations for metalink.c.
-   Copyright (C) 2015, 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015, 2018-2021 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/mswindows.c b/src/mswindows.c
index 42d9f5f8..87796ecf 100644
--- a/src/mswindows.c
+++ b/src/mswindows.c
@@ -1,5 +1,5 @@
 /* mswindows.c -- Windows-specific support
-   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/mswindows.h b/src/mswindows.h
index a8f9ba05..a95afc7b 100644
--- a/src/mswindows.h
+++ b/src/mswindows.h
@@ -1,5 +1,5 @@
 /* Declarations for windows
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/netrc.c b/src/netrc.c
index a9232ed4..76e52485 100644
--- a/src/netrc.c
+++ b/src/netrc.c
@@ -1,5 +1,5 @@
 /* Read and parse the .netrc file to get hosts, accounts, and passwords.
-   Copyright (C) 1996, 2007-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 1996, 2007-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/netrc.h b/src/netrc.h
index 903b8fa2..93accad9 100644
--- a/src/netrc.h
+++ b/src/netrc.h
@@ -1,5 +1,5 @@
 /* Declarations for netrc.c
-   Copyright (C) 1996, 1996-1997, 2007-2011, 2015, 2018-2020 Free
+   Copyright (C) 1996, 1996-1997, 2007-2011, 2015, 2018-2021 Free
    Software Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/openssl.c b/src/openssl.c
index d6099baa..9d86bc83 100644
--- a/src/openssl.c
+++ b/src/openssl.c
@@ -1,5 +1,5 @@
 /* SSL support via OpenSSL library.
-   Copyright (C) 2000-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2000-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
    Originally contributed by Christian Fraenkel.
 
diff --git a/src/options.h b/src/options.h
index 9a02f3aa..6d4c17c5 100644
--- a/src/options.h
+++ b/src/options.h
@@ -1,5 +1,5 @@
 /* struct options.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/progress.c b/src/progress.c
index d8b57e36..deb3bce1 100644
--- a/src/progress.c
+++ b/src/progress.c
@@ -1,5 +1,5 @@
 /* Download progress.
-   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/progress.h b/src/progress.h
index c05e9f31..a5a9520a 100644
--- a/src/progress.h
+++ b/src/progress.h
@@ -1,5 +1,5 @@
 /* Download progress.
-   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ptimer.c b/src/ptimer.c
index 2e5efbc2..2418078c 100644
--- a/src/ptimer.c
+++ b/src/ptimer.c
@@ -1,5 +1,5 @@
 /* Portable timers.
-   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ptimer.h b/src/ptimer.h
index 14b29739..43277a88 100644
--- a/src/ptimer.h
+++ b/src/ptimer.h
@@ -1,5 +1,5 @@
 /* Declarations for ptimer.c.
-   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/recur.c b/src/recur.c
index 8b408b6f..7bc4ec42 100644
--- a/src/recur.c
+++ b/src/recur.c
@@ -1,5 +1,5 @@
 /* Handling of recursive HTTP retrieving.
-   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/recur.h b/src/recur.h
index ea89d99f..e9189dba 100644
--- a/src/recur.h
+++ b/src/recur.h
@@ -1,5 +1,5 @@
 /* Declarations for recur.c.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/res.c b/src/res.c
index 0ed0df93..50e6c7a7 100644
--- a/src/res.c
+++ b/src/res.c
@@ -1,5 +1,5 @@
 /* Support for Robot Exclusion Standard (RES).
-   Copyright (C) 2001, 2006-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2001, 2006-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of Wget.
diff --git a/src/res.h b/src/res.h
index 9235e392..bc177726 100644
--- a/src/res.h
+++ b/src/res.h
@@ -1,5 +1,5 @@
 /* Declarations for res.c.
-   Copyright (C) 2001, 2007-2011, 2015, 2018-2020 Free Software
+   Copyright (C) 2001, 2007-2011, 2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of Wget.
diff --git a/src/retr.c b/src/retr.c
index 9a17be31..c30597e6 100644
--- a/src/retr.c
+++ b/src/retr.c
@@ -1,5 +1,5 @@
 /* File retrieval.
-   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2021 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/retr.h b/src/retr.h
index 9da2a270..4121096e 100644
--- a/src/retr.h
+++ b/src/retr.h
@@ -1,5 +1,5 @@
 /* Declarations for retr.c.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/spider.c b/src/spider.c
index 8727185d..07033ea2 100644
--- a/src/spider.c
+++ b/src/spider.c
@@ -1,5 +1,5 @@
 /* Keep track of visited URLs in spider mode.
-   Copyright (C) 2006-2011, 2015, 2019-2020 Free Software Foundation,
+   Copyright (C) 2006-2011, 2015, 2019-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/spider.h b/src/spider.h
index 48e0ae82..6f0a40c7 100644
--- a/src/spider.h
+++ b/src/spider.h
@@ -1,5 +1,5 @@
 /* Declarations for spider.c
-   Copyright (C) 2006-2011, 2015, 2019-2020 Free Software Foundation,
+   Copyright (C) 2006-2011, 2015, 2019-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ssl.h b/src/ssl.h
index e348252c..475745f3 100644
--- a/src/ssl.h
+++ b/src/ssl.h
@@ -1,5 +1,5 @@
 /* SSL support.
-   Copyright (C) 2000-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2000-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
    Originally contributed by Christian Fraenkel.
 
diff --git a/src/sysdep.h b/src/sysdep.h
index f623e8db..08ea4dae 100644
--- a/src/sysdep.h
+++ b/src/sysdep.h
@@ -1,5 +1,5 @@
 /* Dirty system-dependent hacks.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/url.c b/src/url.c
index 950002bb..8e7aa75e 100644
--- a/src/url.c
+++ b/src/url.c
@@ -1,5 +1,5 @@
 /* URL handling.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/url.h b/src/url.h
index 9313c2fe..29c591da 100644
--- a/src/url.h
+++ b/src/url.h
@@ -1,5 +1,5 @@
 /* Declarations for url.c.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/utils.c b/src/utils.c
index 89a86875..4115ec53 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1,5 +1,5 @@
 /* Various utility functions.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/utils.h b/src/utils.h
index b1ab901e..1dbbf86c 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,5 +1,5 @@
 /* Declarations for utils.c.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/version.h b/src/version.h
index 49fb9311..56a2ae22 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,5 +1,5 @@
 /* Extern declarations for printing version information
-   Copyright (C) 2013, 2015, 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2013, 2015, 2018-2021 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/warc.c b/src/warc.c
index f602444a..fb1d5bfe 100644
--- a/src/warc.c
+++ b/src/warc.c
@@ -1,5 +1,5 @@
 /* Utility functions for writing WARC files.
-   Copyright (C) 2011-2012, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2011-2012, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/wget.h b/src/wget.h
index b6a9dca2..6f20eab5 100644
--- a/src/wget.h
+++ b/src/wget.h
@@ -1,5 +1,5 @@
 /* Miscellaneous declarations.
-   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/xattr.c b/src/xattr.c
index a5261f10..b8d19b9a 100644
--- a/src/xattr.c
+++ b/src/xattr.c
@@ -1,6 +1,6 @@
 /* xattr.h -- POSIX Extended Attribute support.
 
-   Copyright (C) 2016, 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016, 2018-2021 Free Software Foundation, Inc.
 
    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
diff --git a/src/xattr.h b/src/xattr.h
index 20eebe0d..2a679f24 100644
--- a/src/xattr.h
+++ b/src/xattr.h
@@ -1,6 +1,6 @@
 /* xattr.h -- POSIX Extended Attribute function mappings.
 
-   Copyright (C) 2016, 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016, 2018-2021 Free Software Foundation, Inc.
 
    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
diff --git a/testenv/Makefile.am b/testenv/Makefile.am
index 685e5115..bf7e676d 100644
--- a/testenv/Makefile.am
+++ b/testenv/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 2013, 2015, 2018-2020 Free Software Foundation, Inc.
+# Copyright (C) 2013, 2015, 2018-2021 Free Software Foundation, Inc.
 
 # 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
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 5c9ae8da..fb6ec86d 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-2011, 2015, 2018-2020 Free Software Foundation,
+# Copyright (C) 1995-2011, 2015, 2018-2021 Free Software Foundation,
 # Inc.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/tests/unit-tests.c b/tests/unit-tests.c
index f66e5e66..443e628f 100644
--- a/tests/unit-tests.c
+++ b/tests/unit-tests.c
@@ -1,5 +1,5 @@
 /* Unit testing.
-   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/tests/unit-tests.h b/tests/unit-tests.h
index 4a4d51d4..dd10e545 100644
--- a/tests/unit-tests.h
+++ b/tests/unit-tests.h
@@ -1,5 +1,5 @@
 /* Unit testing declarations.
-   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2021 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/util/Makefile.am b/util/Makefile.am
index d82ca63b..25a6b481 100644
--- a/util/Makefile.am
+++ b/util/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2020 Free Software
+# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2021 Free Software
 # Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/util/paramcheck.pl b/util/paramcheck.pl
index 0ad23cce..73d9baa9 100755
--- a/util/paramcheck.pl
+++ b/util/paramcheck.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/env perl
 
-# Copyright (C) 2008-2011, 2015, 2018-2020 Free Software Foundation,
+# Copyright (C) 2008-2011, 2015, 2018-2021 Free Software Foundation,
 # Inc.
 
 # This program is free software; you can redistribute it and/or modify
diff --git a/util/rmold.pl b/util/rmold.pl
index 983ec898..83287b4b 100755
--- a/util/rmold.pl
+++ b/util/rmold.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/env perl -w
 
-# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2020 Free Software
+# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2021 Free Software
 # Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify