diff --git a/Makefile.am b/Makefile.am
index ef28222d..7b960fb2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `Wget' utility
-# Copyright (C) 1995-1997, 2006-2019 Free Software Foundation, Inc.
+# Copyright (C) 1995-1997, 2006-2020 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 9546d82d..ade344fc 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 GNU Wget NEWS -- history of user-visible changes.
 
-Copyright (C) 1997-2019 Free Software Foundation, Inc.
+Copyright (C) 1997-2020 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 152d1ef4..3a57e4b2 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) 1995-2019 Free Software Foundation, Inc.
+Copyright (C) 1995-2020 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 7f2dd340..1314ff29 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, 2018-2019 Free Software
+ Copyright (C) 2008, 2010, 2014-2015, 2018-2020 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 5b08e7e2..0ddf9856 100755
--- a/bootstrap
+++ b/bootstrap
@@ -4,7 +4,7 @@ scriptversion=2019-01-04.17; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2019 Free Software Foundation, Inc.
+# Copyright (C) 2003-2020 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 bbbb4ebc..2d15cd17 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -1,5 +1,5 @@
 # bootstrap.conf - Bootstrap configuration.
-# Copyright (C) 2007-2012, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2007-2012, 2018-2020 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 4ec5fbd3..6c63b366 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, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2009-2011, 2018-2020 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 905e1fc7..fe71b36f 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, 2018-2019 Free Software
+dnl Copyright (C) 1995-1997, 2001, 2007-2014, 2018-2020 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 c6298371..678d01a3 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2019 Free Software
+# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2020 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 39cc38de..93db1ab7 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, 2018-2019 Free
+Copyright @copyright{} 2000-2002, 2007-2008, 2015, 2018-2020 Free
 Software Foundation, Inc.
 @uref{http://fsf.org/}
 
diff --git a/doc/texi2pod.pl b/doc/texi2pod.pl
index 32774841..02f0352e 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, 2018-2019 Free
+#   Copyright (C) 1999-2001, 2003, 2007, 2009-2011, 2015, 2018-2020 Free
 #   Software Foundation, Inc.
 
 # This file is part of GCC.
diff --git a/doc/wget.texi b/doc/wget.texi
index 7eada2dd..a5e4671f 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, 2018-2019 Free Software
+Copyright @copyright{} 1996-2011, 2015, 2018-2020 Free Software
 Foundation, Inc.
 
 @iftex
diff --git a/fuzz/fuzzer.h b/fuzz/fuzzer.h
index e09668b1..fec4478a 100644
--- a/fuzz/fuzzer.h
+++ b/fuzz/fuzzer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/glob_crash.c b/fuzz/glob_crash.c
index acc919eb..53c305d2 100644
--- a/fuzz/glob_crash.c
+++ b/fuzz/glob_crash.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/main.c b/fuzz/main.c
index d6723e14..53e3a6de 100644
--- a/fuzz/main.c
+++ b/fuzz/main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/fuzz/run-afl.sh b/fuzz/run-afl.sh
index 5548d3a6..dcf3aa6f 100755
--- a/fuzz/run-afl.sh
+++ b/fuzz/run-afl.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -eu
 
-# Copyright (c) 2017, 2019 Free Software Foundation, Inc.
+# Copyright (c) 2017, 2019-2020 Free Software Foundation, Inc.
 #
 # This file is part of GNU Wget.
 #
diff --git a/fuzz/run-clang.sh b/fuzz/run-clang.sh
index db506b5f..00b86223 100755
--- a/fuzz/run-clang.sh
+++ b/fuzz/run-clang.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -e
 #
-# Copyright (c) 2017, 2019 Free Software Foundation, Inc.
+# Copyright (c) 2017, 2019-2020 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 cf27c614..1af989ed 100644
--- a/fuzz/wget_cookie_fuzzer.c
+++ b/fuzz/wget_cookie_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 d2d8b09b..5dc197a7 100644
--- a/fuzz/wget_css_fuzzer.c
+++ b/fuzz/wget_css_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 2b674859..49307c4c 100644
--- a/fuzz/wget_ftpls_fuzzer.c
+++ b/fuzz/wget_ftpls_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 75c8153d..43675d6c 100644
--- a/fuzz/wget_html_fuzzer.c
+++ b/fuzz/wget_html_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 b0d1c0fb..30882773 100644
--- a/fuzz/wget_netrc_fuzzer.c
+++ b/fuzz/wget_netrc_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 9813ab48..08a37605 100644
--- a/fuzz/wget_options_fuzzer.c
+++ b/fuzz/wget_options_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 3b8ea3a5..dc1da249 100644
--- a/fuzz/wget_read_hunk_fuzzer.c
+++ b/fuzz/wget_read_hunk_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Free Software Foundation, Inc.
+ * Copyright (c) 2019-2020 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 a62e1f5b..159dc066 100644
--- a/fuzz/wget_robots_fuzzer.c
+++ b/fuzz/wget_robots_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 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 b62ab78f..695704fa 100644
--- a/fuzz/wget_url_fuzzer.c
+++ b/fuzz/wget_url_fuzzer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 Free Software Foundation, Inc.
+ * Copyright (c) 2017-2020 Free Software Foundation, Inc.
  *
  * This file is part of GNU Wget.
  *
diff --git a/m4/exitfail.m4 b/m4/exitfail.m4
index 849729f9..00636102 100644
--- a/m4/exitfail.m4
+++ b/m4/exitfail.m4
@@ -1,5 +1,5 @@
 # exitfail.m4 serial 6
-dnl Copyright (C) 2002-2003, 2005-2006, 2010-2011, 2018-2019 Free
+dnl Copyright (C) 2002-2003, 2005-2006, 2010-2011, 2018-2020 Free
 dnl Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/m4/getpagesize.m4 b/m4/getpagesize.m4
index f503a9ca..1ec3ec87 100644
--- a/m4/getpagesize.m4
+++ b/m4/getpagesize.m4
@@ -1,5 +1,5 @@
 # getpagesize.m4 serial 7
-dnl Copyright (C) 2002, 2004-2005, 2007, 2010-2011, 2018-2019 Free
+dnl Copyright (C) 2002, 2004-2005, 2007, 2010-2011, 2018-2020 Free
 dnl Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/m4/wchar.m4 b/m4/wchar.m4
index 35edc7f2..623a85da 100644
--- a/m4/wchar.m4
+++ b/m4/wchar.m4
@@ -1,6 +1,6 @@
 dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
 
-dnl Copyright (C) 2007-2011, 2018-2019 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2011, 2018-2020 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/m4/wctype.m4 b/m4/wctype.m4
index a61f7a14..daa9f169 100644
--- a/m4/wctype.m4
+++ b/m4/wctype.m4
@@ -2,7 +2,7 @@
 
 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
 
-dnl Copyright (C) 2006-2008, 2010-2011, 2018-2019 Free Software
+dnl Copyright (C) 2006-2008, 2010-2011, 2018-2020 Free Software
 dnl Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/m4/wget.m4 b/m4/wget.m4
index b9066427..f33a3fe0 100644
--- a/m4/wget.m4
+++ b/m4/wget.m4
@@ -1,5 +1,5 @@
 dnl Wget-specific Autoconf macros.
-dnl Copyright (C) 1995-2011, 2018-2019 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2011, 2018-2020 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 d9c81b18..9bc5ee54 100644
--- a/m4/wget_manywarnings.m4
+++ b/m4/wget_manywarnings.m4
@@ -1,5 +1,5 @@
 # wget_manywarnings.m4 serial 1
-dnl Copyright (C) 2016-2019 Free Software Foundation, Inc.
+dnl Copyright (C) 2016-2020 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 bd330a36..c9921991 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,5 +1,5 @@
 # List of files which containing translatable strings.
-# Copyright (C) 1995-2011, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 1995-2011, 2018-2020 Free Software Foundation, Inc.
 
 # Package source files
 lib/error.c
diff --git a/src/Makefile.am b/src/Makefile.am
index 614c1684..0c502800 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-2011, 2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 1995-2011, 2015, 2018-2020 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 14c5aea4..d5127090 100644
--- a/src/connect.c
+++ b/src/connect.c
@@ -1,5 +1,5 @@
 /* Establishing and handling network connections.
-   Copyright (C) 1995-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1995-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/connect.h b/src/connect.h
index a2673c06..fcdbd604 100644
--- a/src/connect.h
+++ b/src/connect.h
@@ -1,5 +1,5 @@
 /* Declarations for connect.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/convert.c b/src/convert.c
index bcbb6b18..d14c9eb1 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, 2018-2019 Free Software
+   Copyright (C) 2003-2011, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/convert.h b/src/convert.h
index ceacf885..531afbd7 100644
--- a/src/convert.h
+++ b/src/convert.h
@@ -1,5 +1,5 @@
 /* Declarations for convert.c
-   Copyright (C) 2003-2006, 2009-2011, 2015, 2018-2019 Free Software
+   Copyright (C) 2003-2006, 2009-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/cookies.c b/src/cookies.c
index 44cbd61e..7b914973 100644
--- a/src/cookies.c
+++ b/src/cookies.c
@@ -1,5 +1,5 @@
 /* Support for cookies.
-   Copyright (C) 2001-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/cookies.h b/src/cookies.h
index 87aac993..903db322 100644
--- a/src/cookies.h
+++ b/src/cookies.h
@@ -1,5 +1,5 @@
 /* Support for cookies.
-   Copyright (C) 2001-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css-tokens.h b/src/css-tokens.h
index b2cb976f..40307ff2 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, 2018-2019 Free Software
+   Copyright (C) 2006, 2009-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css-url.c b/src/css-url.c
index 54909b78..eacd926c 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, 2018-2019 Free
+   Copyright (C) 1998, 2000-2003, 2009-2011, 2014-2015, 2018-2020 Free
    Software Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css-url.h b/src/css-url.h
index abbf7232..e8d7d1f3 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, 2018-2019 Free Software
+   Copyright (C) 2006, 2009-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/css.l b/src/css.l
index d33a603d..bae065de 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, 2018-2019 Free Software
+   Copyright (C) 2006, 2009-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/exits.c b/src/exits.c
index 319c5664..56a7eb70 100644
--- a/src/exits.c
+++ b/src/exits.c
@@ -1,5 +1,5 @@
 /* Exit status handling.
-   Copyright (C) 2009-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2009-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
    This file is part of GNU Wget.
diff --git a/src/exits.h b/src/exits.h
index ca2a6fd4..169ade1c 100644
--- a/src/exits.h
+++ b/src/exits.h
@@ -1,5 +1,5 @@
 /* Exit status related declarations.
-   Copyright (C) 2009-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2009-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp-basic.c b/src/ftp-basic.c
index 3f77f370..e7996c25 100644
--- a/src/ftp-basic.c
+++ b/src/ftp-basic.c
@@ -1,5 +1,5 @@
 /* Basic FTP routines.
-   Copyright (C) 1996-2011, 2014-2015, 2018-2019 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp-ls.c b/src/ftp-ls.c
index 83730c28..b38c86bc 100644
--- a/src/ftp-ls.c
+++ b/src/ftp-ls.c
@@ -1,5 +1,5 @@
 /* Parsing FTP `ls' output.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp-opie.c b/src/ftp-opie.c
index fdfaf400..abe174b4 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, 2018-2019 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp.c b/src/ftp.c
index dba1a023..4794d91e 100644
--- a/src/ftp.c
+++ b/src/ftp.c
@@ -1,5 +1,5 @@
 /* File Transfer Protocol support.
-   Copyright (C) 1996-2011, 2014-2015, 2018-2019 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ftp.h b/src/ftp.h
index 21449621..9958853d 100644
--- a/src/ftp.h
+++ b/src/ftp.h
@@ -1,5 +1,5 @@
 /* Declarations for FTP support.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/gnutls.c b/src/gnutls.c
index 04b50b10..020b4dda 100644
--- a/src/gnutls.c
+++ b/src/gnutls.c
@@ -1,5 +1,5 @@
 /* SSL support via GnuTLS library.
-   Copyright (C) 2005-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hash.c b/src/hash.c
index 04cc5f58..bf3b629e 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -1,5 +1,5 @@
 /* Hash tables.
-   Copyright (C) 2000-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2000-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hash.h b/src/hash.h
index c5bb002f..b8f79654 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -1,5 +1,5 @@
 /* Hash table declarations.
-   Copyright (C) 2000, 2007-2011, 2015, 2018-2019 Free Software
+   Copyright (C) 2000, 2007-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/host.c b/src/host.c
index c3b91d23..2f1b602b 100644
--- a/src/host.c
+++ b/src/host.c
@@ -1,5 +1,5 @@
 /* Host name resolution and matching.
-   Copyright (C) 1996-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/host.h b/src/host.h
index 560391dd..a199d262 100644
--- a/src/host.h
+++ b/src/host.h
@@ -1,5 +1,5 @@
 /* Declarations for host.c
-   Copyright (C) 1996-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hsts.c b/src/hsts.c
index b91bc560..0b50ec57 100644
--- a/src/hsts.c
+++ b/src/hsts.c
@@ -1,5 +1,5 @@
 /* HTTP Strict Transport Security (HSTS) support.
-   Copyright (C) 1996-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/hsts.h b/src/hsts.h
index a92b023b..7cc41e32 100644
--- a/src/hsts.h
+++ b/src/hsts.h
@@ -1,5 +1,5 @@
 /* Declarations for hsts.c
-   Copyright (C) 1996-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-parse.c b/src/html-parse.c
index 44c1418e..30c8ae8e 100644
--- a/src/html-parse.c
+++ b/src/html-parse.c
@@ -1,5 +1,5 @@
 /* HTML parser for Wget.
-   Copyright (C) 1998-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-parse.h b/src/html-parse.h
index 1f0ea6ef..eae8e3c8 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, 2018-2019 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-url.c b/src/html-url.c
index 2f953577..9ed420fc 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, 2018-2019 Free Software Foundation,
+   Copyright (C) 1998-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/html-url.h b/src/html-url.h
index 33ea4cfb..abc7eddd 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, 2018-2019 Free Software
+   Copyright (C) 1995-1997, 2009-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/http-ntlm.c b/src/http-ntlm.c
index 240fa5dc..4b56f4ce 100644
--- a/src/http-ntlm.c
+++ b/src/http-ntlm.c
@@ -1,5 +1,5 @@
 /* NTLM code.
-   Copyright (C) 2005-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
    Contributed by Daniel Stenberg.
 
diff --git a/src/http-ntlm.h b/src/http-ntlm.h
index 895d5e3e..de0c9ce0 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, 2018-2019 Free
+   Copyright (C) 1995-1997, 2000, 2007-2011, 2015, 2018-2020 Free
    Software Foundation, Inc.
    Contributed by Daniel Stenberg.
 
diff --git a/src/http.c b/src/http.c
index 289d1101..e6bb0dcf 100644
--- a/src/http.c
+++ b/src/http.c
@@ -1,5 +1,5 @@
 /* HTTP support.
-   Copyright (C) 1996-2012, 2014-2015, 2018-2019 Free Software
+   Copyright (C) 1996-2012, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/http.h b/src/http.h
index d6b22ea0..5eac0da1 100644
--- a/src/http.h
+++ b/src/http.h
@@ -1,5 +1,5 @@
 /* Declarations for HTTP.
-   Copyright (C) 2005-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/init.c b/src/init.c
index 9b6665a6..eae5391b 100644
--- a/src/init.c
+++ b/src/init.c
@@ -1,5 +1,5 @@
 /* Reading/parsing the initialization file.
-   Copyright (C) 1996-2012, 2014-2015, 2018-2019 Free Software
+   Copyright (C) 1996-2012, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/init.h b/src/init.h
index 2ec8dde4..a0198f5b 100644
--- a/src/init.h
+++ b/src/init.h
@@ -1,5 +1,5 @@
 /* Declarations for init.c.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/iri.c b/src/iri.c
index eef12dce..afdadf70 100644
--- a/src/iri.c
+++ b/src/iri.c
@@ -1,5 +1,5 @@
 /* IRI related functions.
-   Copyright (C) 2008-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2008-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/iri.h b/src/iri.h
index 50e6142f..c6b75e87 100644
--- a/src/iri.h
+++ b/src/iri.h
@@ -1,5 +1,5 @@
 /* Internationalization related declarations.
-   Copyright (C) 2008-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2008-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/log.c b/src/log.c
index 32765e2a..acc88399 100644
--- a/src/log.c
+++ b/src/log.c
@@ -1,5 +1,5 @@
 /* Messages logging.
-   Copyright (C) 1998-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/log.h b/src/log.h
index e298f5c8..40d4d887 100644
--- a/src/log.h
+++ b/src/log.h
@@ -1,5 +1,5 @@
 /* Declarations for log.c.
-   Copyright (C) 1998-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1998-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/main.c b/src/main.c
index 3d6d0d77..4d595ef0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,5 +1,5 @@
 /* Command line parsing.
-   Copyright (C) 1996-2015, 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 1996-2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/metalink.c b/src/metalink.c
index 72f7d1b6..e50cc24a 100644
--- a/src/metalink.c
+++ b/src/metalink.c
@@ -1,5 +1,5 @@
 /* Metalink module.
-   Copyright (C) 2015, 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/metalink.h b/src/metalink.h
index 694db84f..3479ad76 100644
--- a/src/metalink.h
+++ b/src/metalink.h
@@ -1,5 +1,5 @@
 /* Declarations for metalink.c.
-   Copyright (C) 2015, 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/mswindows.c b/src/mswindows.c
index 933d18fd..42d9f5f8 100644
--- a/src/mswindows.c
+++ b/src/mswindows.c
@@ -1,5 +1,5 @@
 /* mswindows.c -- Windows-specific support
-   Copyright (C) 1996-2011, 2014-2015, 2018-2019 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/mswindows.h b/src/mswindows.h
index f43d745b..0a8b97ac 100644
--- a/src/mswindows.h
+++ b/src/mswindows.h
@@ -1,5 +1,5 @@
 /* Declarations for windows
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/netrc.c b/src/netrc.c
index e38a8283..5f9d85e1 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, 2018-2019 Free Software
+   Copyright (C) 1996, 2007-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/netrc.h b/src/netrc.h
index 43f9410e..903b8fa2 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, 2018-2019 Free
+   Copyright (C) 1996, 1996-1997, 2007-2011, 2015, 2018-2020 Free
    Software Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/openssl.c b/src/openssl.c
index d8c5e05f..05379237 100644
--- a/src/openssl.c
+++ b/src/openssl.c
@@ -1,5 +1,5 @@
 /* SSL support via OpenSSL library.
-   Copyright (C) 2000-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2000-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
    Originally contributed by Christian Fraenkel.
 
diff --git a/src/options.h b/src/options.h
index 881e2b2e..9a02f3aa 100644
--- a/src/options.h
+++ b/src/options.h
@@ -1,5 +1,5 @@
 /* struct options.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/progress.c b/src/progress.c
index 63bebab8..02b6f04d 100644
--- a/src/progress.c
+++ b/src/progress.c
@@ -1,5 +1,5 @@
 /* Download progress.
-   Copyright (C) 2001-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/progress.h b/src/progress.h
index e6503717..c05e9f31 100644
--- a/src/progress.h
+++ b/src/progress.h
@@ -1,5 +1,5 @@
 /* Download progress.
-   Copyright (C) 2001-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2001-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ptimer.c b/src/ptimer.c
index 00a64e55..2e5efbc2 100644
--- a/src/ptimer.c
+++ b/src/ptimer.c
@@ -1,5 +1,5 @@
 /* Portable timers.
-   Copyright (C) 2005-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/ptimer.h b/src/ptimer.h
index 1d6187cb..14b29739 100644
--- a/src/ptimer.h
+++ b/src/ptimer.h
@@ -1,5 +1,5 @@
 /* Declarations for ptimer.c.
-   Copyright (C) 2005-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/recur.c b/src/recur.c
index b3190485..8b408b6f 100644
--- a/src/recur.c
+++ b/src/recur.c
@@ -1,5 +1,5 @@
 /* Handling of recursive HTTP retrieving.
-   Copyright (C) 1996-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/recur.h b/src/recur.h
index f2b9b6da..ea89d99f 100644
--- a/src/recur.h
+++ b/src/recur.h
@@ -1,5 +1,5 @@
 /* Declarations for recur.c.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/res.c b/src/res.c
index 9b7f3667..778493e4 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, 2018-2019 Free Software
+   Copyright (C) 2001, 2006-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of Wget.
diff --git a/src/res.h b/src/res.h
index a4bd650f..9235e392 100644
--- a/src/res.h
+++ b/src/res.h
@@ -1,5 +1,5 @@
 /* Declarations for res.c.
-   Copyright (C) 2001, 2007-2011, 2015, 2018-2019 Free Software
+   Copyright (C) 2001, 2007-2011, 2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of Wget.
diff --git a/src/retr.c b/src/retr.c
index f3a82419..5107ef75 100644
--- a/src/retr.c
+++ b/src/retr.c
@@ -1,5 +1,5 @@
 /* File retrieval.
-   Copyright (C) 1996-2011, 2014-2015, 2018-2019 Free Software
+   Copyright (C) 1996-2011, 2014-2015, 2018-2020 Free Software
    Foundation, Inc.
 
 This file is part of GNU Wget.
diff --git a/src/retr.h b/src/retr.h
index 730d8b36..9da2a270 100644
--- a/src/retr.h
+++ b/src/retr.h
@@ -1,5 +1,5 @@
 /* Declarations for retr.c.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/spider.c b/src/spider.c
index df80c146..d62907cb 100644
--- a/src/spider.c
+++ b/src/spider.c
@@ -1,5 +1,6 @@
 /* Keep track of visited URLs in spider mode.
-   Copyright (C) 2006-2011, 2015, 2019 Free Software Foundation, Inc.
+   Copyright (C) 2006-2011, 2015, 2019-2020 Free Software Foundation,
+   Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/spider.h b/src/spider.h
index d515e8fb..48e0ae82 100644
--- a/src/spider.h
+++ b/src/spider.h
@@ -1,5 +1,6 @@
 /* Declarations for spider.c
-   Copyright (C) 2006-2011, 2015, 2019 Free Software Foundation, Inc.
+   Copyright (C) 2006-2011, 2015, 2019-2020 Free Software Foundation,
+   Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/ssl.h b/src/ssl.h
index e0c7766d..f00315ae 100644
--- a/src/ssl.h
+++ b/src/ssl.h
@@ -1,5 +1,5 @@
 /* SSL support.
-   Copyright (C) 2000-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2000-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
    Originally contributed by Christian Fraenkel.
 
diff --git a/src/sysdep.h b/src/sysdep.h
index c17fa01e..3303fda5 100644
--- a/src/sysdep.h
+++ b/src/sysdep.h
@@ -1,5 +1,5 @@
 /* Dirty system-dependent hacks.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/url.c b/src/url.c
index 0fb1349f..8929d2c8 100644
--- a/src/url.c
+++ b/src/url.c
@@ -1,5 +1,5 @@
 /* URL handling.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/url.h b/src/url.h
index c672f1c3..9313c2fe 100644
--- a/src/url.h
+++ b/src/url.h
@@ -1,5 +1,5 @@
 /* Declarations for url.c.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/utils.c b/src/utils.c
index 89a87b07..9d78cadb 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1,5 +1,5 @@
 /* Various utility functions.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/utils.h b/src/utils.h
index 3cffd2a5..370d6b54 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,5 +1,5 @@
 /* Declarations for utils.c.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/version.h b/src/version.h
index 95ae78a2..49fb9311 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,5 +1,5 @@
 /* Extern declarations for printing version information
-   Copyright (C) 2013, 2015, 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2013, 2015, 2018-2020 Free Software Foundation, Inc.
 
 This file is part of GNU Wget.
 
diff --git a/src/warc.c b/src/warc.c
index 74c8ad9e..dbdd87de 100644
--- a/src/warc.c
+++ b/src/warc.c
@@ -1,5 +1,5 @@
 /* Utility functions for writing WARC files.
-   Copyright (C) 2011-2012, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2011-2012, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/wget.h b/src/wget.h
index 0cf3f2ca..872c4621 100644
--- a/src/wget.h
+++ b/src/wget.h
@@ -1,5 +1,5 @@
 /* Miscellaneous declarations.
-   Copyright (C) 1996-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 1996-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/src/xattr.c b/src/xattr.c
index 05e902dd..a5261f10 100644
--- a/src/xattr.c
+++ b/src/xattr.c
@@ -1,6 +1,6 @@
 /* xattr.h -- POSIX Extended Attribute support.
 
-   Copyright (C) 2016, 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2016, 2018-2020 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 bbe0fe4f..20eebe0d 100644
--- a/src/xattr.h
+++ b/src/xattr.h
@@ -1,6 +1,6 @@
 /* xattr.h -- POSIX Extended Attribute function mappings.
 
-   Copyright (C) 2016, 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2016, 2018-2020 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 b5a39ad2..412f8125 100644
--- a/testenv/Makefile.am
+++ b/testenv/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 2013, 2015, 2018-2019 Free Software Foundation, Inc.
+# Copyright (C) 2013, 2015, 2018-2020 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 2ca32776..5c9ae8da 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-2011, 2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 1995-2011, 2015, 2018-2020 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 52018282..5fae8a21 100644
--- a/tests/unit-tests.c
+++ b/tests/unit-tests.c
@@ -1,5 +1,5 @@
 /* Unit testing.
-   Copyright (C) 2005-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/tests/unit-tests.h b/tests/unit-tests.h
index 3ec00378..4a4d51d4 100644
--- a/tests/unit-tests.h
+++ b/tests/unit-tests.h
@@ -1,5 +1,5 @@
 /* Unit testing declarations.
-   Copyright (C) 2005-2011, 2015, 2018-2019 Free Software Foundation,
+   Copyright (C) 2005-2011, 2015, 2018-2020 Free Software Foundation,
    Inc.
 
 This file is part of GNU Wget.
diff --git a/util/Makefile.am b/util/Makefile.am
index a994a3d4..d82ca63b 100644
--- a/util/Makefile.am
+++ b/util/Makefile.am
@@ -1,5 +1,5 @@
 # Makefile for `wget' utility
-# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2019 Free Software
+# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2020 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 b0e65952..0ad23cce 100755
--- a/util/paramcheck.pl
+++ b/util/paramcheck.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/env perl
 
-# Copyright (C) 2008-2011, 2015, 2018-2019 Free Software Foundation,
+# Copyright (C) 2008-2011, 2015, 2018-2020 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 b425639d..983ec898 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, 2018-2019 Free Software
+# Copyright (C) 1995-1997, 2007-2011, 2015, 2018-2020 Free Software
 # Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify