diff --git a/ocaml-ocplib-simplex.spec b/ocaml-ocplib-simplex.spec
index f23d83a..d1c745d 100644
--- a/ocaml-ocplib-simplex.spec
+++ b/ocaml-ocplib-simplex.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{pkgname}
 Version:        0.4
-Release:        22%{?dist}
+Release:        23%{?dist}
 Summary:        Simplex algorithm for solving systems of linear inequalities
 
 # The same exception to clause 6 as provided by ocaml applies to this package.
@@ -83,6 +83,9 @@ make local-tests
 %{_libdir}/ocaml/*/*.mli
 
 %changelog
+* Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.4-23
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
 * Mon Mar 29 2021 Jerry James <loganjerry@gmail.com> - 0.4-22
 - Add -autoconf patch for autoconf 2.71 (bz 1943043)