diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 9f8e606c..119d6af8 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -82,7 +82,6 @@ jobs:
           eval $(perl -I ${{ env.PERL_CACHE }}/lib/perl5/ -Mlocal::lib)
           
           cpanm --quiet --notest Module::Build
-          cpanm --quiet --notest Alien::Tidyp
           
           ./scripts/install_wsi_dependencies.sh "$NPG_LIB" \
              perl-dnap-utilities \
diff --git a/Build.PL b/Build.PL
index 2a9b5f6a..13eb876d 100644
--- a/Build.PL
+++ b/Build.PL
@@ -158,7 +158,6 @@ my $builder = $class->new(
                 'GD::Text'                        => 0,
                 'Getopt::Long'                    => '2.37',
                 'HTML::PullParser'                => '3.57',
-                'HTML::Tidy'                      => 0,
                 'HTTP::Request'                   => '5.818',
                 'HTTP::Request::Common'           => '5.822',
                 'HTTP::Response'                  => 0,
diff --git a/Changes b/Changes
index 13e8294f..41eb9d41 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,9 @@
 LIST OF CHANGES
 
+release 101.1.1
+ - remove dependency on HTML::Tidy
+ - update NovaSeqX icon
+
 release 101.1.0
  - Deleted npg_tracking::illumina::run::short_info and
    npg_tracking::illumina::run::locations, their functionality is moved to
diff --git a/MANIFEST b/MANIFEST
index 433b1834..609c6d63 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -188,7 +188,6 @@ lib/npg/view/user.pm
 lib/npg/view/user2usergroup.pm
 lib/npg/view/usergroup.pm
 lib/npg_testing/db.pm
-lib/npg_testing/html.pm
 lib/npg_tracking/daemon.pm
 lib/npg_tracking/data/bait.pm
 lib/npg_tracking/data/bait/find.pm
@@ -327,7 +326,6 @@ t/10-model-user_usergroup.t
 t/10-model-usergroup.t
 t/10-model.t
 t/10-npg_testing-db.t
-t/10-npg_testing-html.t
 t/10-npg_tracking-glossary-composition-component-illumina.t
 t/10-npg_tracking-glossary-composition-component.t
 t/10-npg_tracking-glossary-composition-factory-attributes.t
diff --git a/data/gfx/NovaSeqX.png b/data/gfx/NovaSeqX.png
index 994768ab..932cef31 100644
Binary files a/data/gfx/NovaSeqX.png and b/data/gfx/NovaSeqX.png differ
diff --git a/lib/npg_testing/html.pm b/lib/npg_testing/html.pm
deleted file mode 100644
index bc5c5577..00000000
--- a/lib/npg_testing/html.pm
+++ /dev/null
@@ -1,111 +0,0 @@
-package npg_testing::html;
-
-use strict;
-use warnings;
-use Carp;
-use English qw{-no_match_vars};
-use Exporter;
-use HTML::Tidy;
-
-our $VERSION = '0';
-
-=head1 NAME
-
-npg_testing::html
-
-=head1 VERSION
-
-=head1 SYNOPSIS
-
-=head1 DESCRIPTION
-
-A collection of test routines for html
-
-=head1 SUBROUTINES/METHODS
-
-=cut
-
-
-## no critic (ProhibitExplicitISA)
-our @ISA       = qw(Exporter);
-our @EXPORT_OK = qw(html_tidy_ok);
-
-=head2 html_tidy_ok
-
-Test utilising HTML::Tidy
-
-=cut
-sub html_tidy_ok {
-    my $html_string = shift;
-    my $tidy = HTML::Tidy->new( {} );
-    my $is_tidy = 1;
-    $tidy->parse(q[], $html_string);
-    if (scalar $tidy->messages() > 0) {
-        $is_tidy = 0;
-        carp (join qq[\n], q[HTML::Tidy messages:], $tidy->messages());
-        ## no critic (ProhibitStringySplit)
-        my @lines = split qq[\n], $html_string;
-        ## use critic
-        my $count = 0;
-        my @counted_lines = ();
-        foreach my $line (@lines) { $count++; push @counted_lines, "$count: $line"; }
-        carp  (join qq[\n], @counted_lines);
-    }
-    $tidy->clear_messages();
-    return $is_tidy;
-}
-
-1;
-__END__
-
-=head1 DIAGNOSTICS
-
-=head1 CONFIGURATION AND ENVIRONMENT
-
-=head1 DEPENDENCIES
-
-=over
-
-=item warnings
-
-=item strict
-
-=item Carp
-
-=item English
-
-=item Exporter
-
-=item HTML::Tidy
-
-=back
-
-=head1 INCOMPATIBILITIES
-
-=head1 BUGS AND LIMITATIONS
-
-=head1 AUTHOR
-
-Marina Gourtovaia E<lt>mg8@sanger.ac.ukE<gt>
-
-=head1 LICENSE AND COPYRIGHT
-
-Copyright (C) 2010 GRL, by Marina Gourtovaia
-
-This file is part of NPG.
-
-NPG 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.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-=cut
-
diff --git a/t/10-npg_testing-html.t b/t/10-npg_testing-html.t
deleted file mode 100644
index 0f83c924..00000000
--- a/t/10-npg_testing-html.t
+++ /dev/null
@@ -1,9 +0,0 @@
-use strict;
-use warnings;
-use Test::More tests => 2;
-
-my @subs = qw(html_tidy_ok);
-use_ok( 'npg_testing::html', @subs);
-can_ok(__PACKAGE__, 'html_tidy_ok');
-
-1;
\ No newline at end of file