diff --git a/libidn2-2.3.0.tar.gz b/libidn2-2.3.0.tar.gz
deleted file mode 100644
index 3e5db78..0000000
--- a/libidn2-2.3.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e1cb1db3d2e249a6a3eb6f0946777c2e892d5c5dc7bd91c74394fc3a01cab8b5
-size 2164993
diff --git a/libidn2-2.3.0.tar.gz.sig b/libidn2-2.3.0.tar.gz.sig
deleted file mode 100644
index 5d27e8b..0000000
Binary files a/libidn2-2.3.0.tar.gz.sig and /dev/null differ
diff --git a/libidn2-2.3.1.tar.gz b/libidn2-2.3.1.tar.gz
new file mode 100644
index 0000000..235d34c
--- /dev/null
+++ b/libidn2-2.3.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8af684943836b8b53965d5f5b6714ef13c26c91eaa36ce7d242e3d21f5d40f2d
+size 2188338
diff --git a/libidn2-rpmlintrc b/libidn2-rpmlintrc
new file mode 100644
index 0000000..f80ddc8
--- /dev/null
+++ b/libidn2-rpmlintrc
@@ -0,0 +1 @@
+addFilter("libidn2-tools.*shlib-policy-missing-lib")
diff --git a/libidn2.changes b/libidn2.changes
index 1405854..1e2ac77 100644
--- a/libidn2.changes
+++ b/libidn2.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Wed May 12 22:07:39 UTC 2021 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- libidn2 2.3.1:
+  * Implement full roundtrip for lookup functionality
+  * Fix domain too long error
+  * Updated gnulib files and various build fixes
+
 -------------------------------------------------------------------
 Tue May 26 06:14:55 UTC 2020 - Stephan Kulow <coolo@suse.com>
 
diff --git a/libidn2.spec b/libidn2.spec
index 8101c66..bcbe5d6 100644
--- a/libidn2.spec
+++ b/libidn2.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libidn2
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,15 +17,16 @@
 
 
 %define lname	libidn2-0
+%{!?make_build: %define make_build make %{?_smp_mflags}}
 Name:           libidn2
-Version:        2.3.0
+Version:        2.3.1
 Release:        0
 Summary:        Support for Internationalized Domain Names (IDN) based on IDNA2008
-License:        GPL-3.0-or-later AND (GPL-2.0-or-later OR LGPL-3.0-or-later)
+License:        (GPL-2.0-or-later OR LGPL-3.0-or-later) AND GPL-3.0-or-later
 URL:            https://www.gnu.org/software/libidn/#libidn2
 Source0:        https://ftp.gnu.org/gnu/libidn/%{name}-%{version}.tar.gz
-Source1:        https://ftp.gnu.org/gnu/libidn/%{name}-%{version}.tar.gz.sig
 Source3:        baselibs.conf
+Source4:        %{name}-rpmlintrc
 BuildRequires:  libunistring-devel
 BuildRequires:  pkgconfig
 
@@ -35,7 +36,6 @@ An implementation of the IDNA2008 specifications (RFCs 5890, 5891, 5892, 5893)
 %package tools
 Summary:        Command line utility to convert Int. Domain Names
 License:        GPL-3.0-or-later
-Requires(post): %{install_info_prereq}
 
 %description tools
 An implementation of the IDNA2008 specifications (RFCs 5890, 5891, 5892, 5893)
@@ -51,7 +51,7 @@ An implementation of the IDNA2008 specifications (RFCs 5890, 5891, 5892, 5893)
 
 %package devel
 Summary:        Include Files and Libraries mandatory for Development
-License:        GPL-3.0-or-later AND (GPL-2.0-or-later OR LGPL-3.0-or-later)
+License:        (GPL-2.0-or-later OR LGPL-3.0-or-later) AND GPL-3.0-or-later
 Requires:       %{lname} = %{version}
 
 %description devel
@@ -69,7 +69,7 @@ An implementation of the IDNA2008 specifications (RFCs 5890, 5891, 5892, 5893)
     --disable-static \
     --disable-gtk-doc
 
-make %{?_smp_mflags}
+%make_build
 
 %install
 %make_install
@@ -79,13 +79,7 @@ rm -rf %{buildroot}/%{_datadir}/gtk-doc/
 %find_lang %{name}
 
 %check
-make check %{?_smp_mflags}
-
-%post tools
-%install_info --info-dir=%{_infodir} %{_infodir}/libidn2.info.*
-
-%preun tools
-%install_info_delete --info-dir=%{_infodir} %{_infodir}/libidn2.info.*
+%make_build check
 
 %post -n %{lname} -p /sbin/ldconfig
 %postun -n %{lname} -p /sbin/ldconfig