diff --git a/.gitignore b/.gitignore
index de5c14c..75b23d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 /less-590.tar.gz
 /less-608.tar.gz
 /less-633.tar.gz
+/less-643.tar.gz
diff --git a/less.spec b/less.spec
index f664226..e54ae5c 100644
--- a/less.spec
+++ b/less.spec
@@ -1,7 +1,7 @@
 Summary: A text file browser similar to more, but better
 Name: less
-Version: 633
-Release: 2%{?dist}
+Version: 643
+Release: 1%{?dist}
 License: GPLv3+ or BSD
 Source0: https://www.greenwoodsoftware.com/less/%{name}-%{version}.tar.gz
 Source1: lesspipe.sh
@@ -61,6 +61,10 @@ install -p -m 644 %{SOURCE3} $RPM_BUILD_ROOT/etc/profile.d
 %{_mandir}/man1/*
 
 %changelog
+* Tue Sep 05 2023 Matej Mužila <mmuzila@redhat.com> - 643-1
+- Update to new upstream release
+- Resolves: #2231663
+
 * Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 633-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
 
diff --git a/sources b/sources
index eb34862..28fa119 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (less-633.tar.gz) = a29aaf72abca07fb29d12f218bbd422a39e3898b3d53e8dbd5265ae47ecf68b88c3381aa3a9bf7caa8db1e2d8e2c138b333f0d69fddd4cf014e39118c53f7fb1
+SHA512 (less-643.tar.gz) = 6a324ac54e22429ac652dc303bc1fe48933555d1cbf8ad7ecf345940910c014fef9551a3219743cfb7115e356b5841ae97d6ce62e7a1ba1e3300d243efca34d9