diff --git a/.gitignore b/.gitignore
index b03e55f..2c88b29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-SOURCES/liborcus-0.16.1.tar.xz
+SOURCES/liborcus-0.18.1.tar.xz
diff --git a/.liborcus.metadata b/.liborcus.metadata
index 1485733..670b791 100644
--- a/.liborcus.metadata
+++ b/.liborcus.metadata
@@ -1 +1 @@
-8c84dcd87039f15ee8c9cf7c175d5091d3f56c90 SOURCES/liborcus-0.16.1.tar.xz
+9bff8c07b5dace0f9ec0d67e0629de1c2f974d9a  SOURCES/liborcus-0.18.1.tar.xz
diff --git a/SPECS/liborcus.spec b/SPECS/liborcus.spec
index 4ecc535..02b2e50 100644
--- a/SPECS/liborcus.spec
+++ b/SPECS/liborcus.spec
@@ -1,4 +1,4 @@
-%global apiversion 0.16
+%global apiversion 0.18
 
 %if 0%{?rhel}
 
@@ -16,15 +16,13 @@
 %endif
 
 Name: liborcus
-Version: 0.16.1
-Release: 8%{?dist}
+Version: 0.18.1
+Release: 1
 Summary: Standalone file import filter library for spreadsheet documents
 
-License: MPLv2.0
+License: MPL-2.0
 URL: https://gitlab.com/orcus/orcus
 Source0: https://kohei.us/files/orcus/src/%{name}-%{version}.tar.xz
-Patch0:  %{name}-gcc11.patch
-Patch1:  liborcus-noexamples.patch
 
 BuildRequires: make
 BuildRequires: boost-devel
@@ -33,9 +31,9 @@ BuildRequires: gcc-c++
 BuildRequires: automake
 %if %{with convtools}
 BuildRequires: help2man
-BuildRequires: pkgconfig(libixion-0.16)
+BuildRequires: pkgconfig(libixion-0.17)
 %endif
-BuildRequires: pkgconfig(mdds-1.5)
+BuildRequires: pkgconfig(mdds-2.1)
 %if %{with python}
 BuildRequires: pkgconfig(python3)
 %if 0%{?rhel}
@@ -104,7 +102,7 @@ API documentation for %{name}.
 %build
 autoreconf
 %configure --disable-debug --disable-silent-rules --disable-static \
-    --disable-werror --with-pic %{?condopts}
+    --disable-werror --with-pic --without-doc-example %{?condopts}
 sed -i \
     -e 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' \
     -e 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' \
@@ -199,12 +197,56 @@ make check %{?_smp_mflags}
 %doc doc/_doxygen/html
 
 %changelog
-* Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 0.16.1-8
-- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
-  Related: rhbz#1991688
+* Sat May 11 2024 Arkady L. Shane <tigro@msvsphere-os.ru> - 0.18.1-1
+- Rebuilt for MSVSphere 9.4
 
-* Fri Apr 16 2021 Mohan Boddu <mboddu@redhat.com> - 0.16.1-7
-- Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937
+* Tue Jul 25 2023 Sandino Araico Sánchez <sandino@sandino.net> - 0.18.1-1
+- latest release
+
+* Tue Jul 25 2023 Sandino Araico Sánchez <sandino@sandino.net> - 0.18.0-1
+- new upstream release needed for libreoffice 7.6
+
+* Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 0.17.2-11
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
+
+* Tue Jun 13 2023 Python Maint <python-maint@redhat.com> - 0.17.2-10
+- Rebuilt for Python 3.12
+
+* Mon Feb 20 2023 Jonathan Wakely <jwakely@redhat.com> - 0.17.2-9
+- Rebuilt for Boost 1.81
+
+* Mon Jan 23 2023 Caolán McNamara <caolanm@redhat.com> - 0.17.2-8
+- inclue cstdint for gcc 13
+
+* Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 0.17.2-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
+
+* Mon Nov 21 2022 David Tardon <dtardon@redhat.com> - 0.17.2-5
+- Convert license to SPDX
+
+* Thu Jul 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 0.17.2-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
+
+* Mon Jun 13 2022 Python Maint <python-maint@redhat.com> - 0.17.2-3
+- Rebuilt for Python 3.11
+
+* Wed May 04 2022 Thomas Rodgers <trodgers@redhat.com> - 0.17.2-2
+- Rebuilt for Boost 1.78
+
+* Wed Feb 02 2022 Caolán McNamara <caolanm@redhat.com> - 0.17.2-1
+- Resolves: rhbz#2018620 Update to 0.17.2
+
+* Thu Jan 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 0.16.1-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
+
+* Sat Aug 07 2021 Jonathan Wakely <jwakely@redhat.com> - 0.16.1-9
+- Rebuilt for Boost 1.76
+
+* Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.16.1-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
+* Fri Jun 04 2021 Python Maint <python-maint@redhat.com> - 0.16.1-7
+- Rebuilt for Python 3.10
 
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.16.1-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
@@ -432,3 +474,4 @@ make check %{?_smp_mflags}
 
 * Sun Sep 09 2012 David Tardon <dtardon@redhat.com> - 0.1.0-1
 - initial import
+