diff --git a/.gitignore b/.gitignore
index b2727ff..00894cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /shellinabox-2.17.tar.gz
 /shellinabox-2.18.tar.gz
 /shellinabox-2.19.tar.gz
+/shellinabox-2.20.tar.gz
diff --git a/shellinabox-ssh-options.patch b/shellinabox-ssh-options.patch
index a115a7c..7517087 100644
--- a/shellinabox-ssh-options.patch
+++ b/shellinabox-ssh-options.patch
@@ -1,9 +1,13 @@
-diff -Naur shellinabox_fork-88822c1f4c030d5f05ced097eb7b6668ff3d7c6f.old/shellinabox/service.c shellinabox_fork-88822c1f4c030d5f05ced097eb7b6668ff3d7c6f/shellinabox/service.c
---- shellinabox_fork-88822c1f4c030d5f05ced097eb7b6668ff3d7c6f.old/shellinabox/service.c	2014-06-11 11:34:52.304810724 +0200
-+++ shellinabox_fork-88822c1f4c030d5f05ced097eb7b6668ff3d7c6f/shellinabox/service.c	2014-06-11 11:35:18.733619259 +0200
-@@ -159,6 +159,7 @@
-           "-oPubkeyAuthentication=no -oRhostsRSAAuthentication=no "
-           "-oRSAAuthentication=no -oStrictHostKeyChecking=no -oTunnel=no "
+diff -Naur shellinabox-2.20.old/shellinabox/service.c shellinabox-2.20/shellinabox/service.c
+--- shellinabox-2.20.old/shellinabox/service.c	2017-12-07 16:51:32.422058845 +0100
++++ shellinabox-2.20/shellinabox/service.c	2017-12-07 16:52:51.979540100 +0100
+@@ -175,9 +175,9 @@
+           "-oHostbasedAuthentication=no -oIdentitiesOnly=yes "
+           "-oKbdInteractiveAuthentication=yes -oPasswordAuthentication=yes "
+           "-oPreferredAuthentications=keyboard-interactive,password "
+-          "-oPubkeyAuthentication=no -oRhostsRSAAuthentication=no "
+-          "-oRSAAuthentication=no -oStrictHostKeyChecking=no -oTunnel=no "
++          "-oPubkeyAuthentication=no -oStrictHostKeyChecking=no -oTunnel=no "
            "-oUserKnownHostsFile=/dev/null -oVerifyHostKeyDNS=no "
 +          "-oProxyCommand=none "
  // beewoolie-2012.03.30: while it would be nice to disable this
diff --git a/shellinabox.spec b/shellinabox.spec
index f153295..f68243e 100644
--- a/shellinabox.spec
+++ b/shellinabox.spec
@@ -1,17 +1,11 @@
 %global username shellinabox
 
-%if 0%{?rhel} == 5
-%define _sharedstatedir /var/lib
-%endif
-
 Name:           shellinabox
-Version:        2.19
-Release:        1%{?dist}
+Version:        2.20
+Release:        5%{?dist}
 Summary:        Web based AJAX terminal emulator
-Group:          System Environment/Daemons
 License:        GPLv2
 URL:            https://github.com/%{name}/%{name}
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 Source0:        https://github.com/%{name}/%{name}/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
 Source1:        shellinaboxd.sysconfig
@@ -36,7 +30,7 @@ Requires(preun):    systemd
 Requires(postun):   systemd
 %endif
 
-%if 0%{?rhel} == 5 || 0%{?rhel} == 6
+%if 0%{?rhel} == 6
 Requires(post):     /sbin/chkconfig
 Requires(preun):    /sbin/chkconfig
 Requires(preun):    /sbin/service
@@ -60,8 +54,6 @@ make %{?_smp_mflags}
 chmod 644 %{name}/*
 
 %install
-rm -rf %{buildroot}
-
 mkdir -p %{buildroot}%{_datadir}/%{name}
 mkdir -p %{buildroot}%{_sharedstatedir}/%{name}
 
@@ -84,10 +76,6 @@ install -p -m 755 -D %{SOURCE3} %{buildroot}%{_initrddir}/shellinaboxd
 
 %endif
 
-%clean
-rm -rf %{buildroot}
-
-
 %pre
 getent group %username >/dev/null || groupadd -r %username &>/dev/null || :
 getent passwd %username >/dev/null || useradd -r -s /sbin/nologin \
@@ -107,7 +95,7 @@ exit 0
 
 %endif
 
-%if 0%{?rhel} == 6 || 0%{?rhel} == 5
+%if 0%{?rhel} == 6
 
 %post
 /sbin/chkconfig --add shellinaboxd
@@ -127,7 +115,6 @@ fi
 
 %files
 %{!?_licensedir:%global license %%doc}
-%license GPL-2 COPYING
 %doc AUTHORS NEWS README README.Fedora
 %doc shellinabox/styles.css shellinabox/print-styles.css
 %doc shellinabox/shell_in_a_box.js
@@ -143,6 +130,27 @@ fi
 %attr(750,%{username},%{username}) %{_sharedstatedir}/%{name}
 
 %changelog
+* Thu Dec 07 2017 Simone Caronni <negativo17@gmail.com> - 2.20-5
+- Disable SSHv1 options.
+
+* Thu Aug 03 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.20-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild
+
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.20-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Thu Mar 09 2017 Simone Caronni <negativo17@gmail.com> - 2.20-2
+- Remove support for RHEL/CentOS 5.
+
+* Thu Mar 09 2017 Simone Caronni <negativo17@gmail.com> - 2.20-1
+- Update to 2.20.
+
+* Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.19-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
+* Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 2.19-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
 * Fri Dec 11 2015 Simone Caronni <negativo17@gmail.com> - 2.19-1
 - Update to 2.19. Fixes CVE-2015-8400 (#1287577).
 
diff --git a/sources b/sources
index 7ffc3a1..b8808d8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-bf2d85f6328f83dda7f8c5ac749187f5  shellinabox-2.19.tar.gz
+SHA512 (shellinabox-2.20.tar.gz) = 369fb6e0041fc3eb52a533f14d1f856a71ec1bf166441e25a5d61bb129f2db5de6b61205ddd0cb08d53384baaf4e087bd2c549f7919b96ee465d4cc3318d2237