diff --git a/ocaml-ocplib-simplex.spec b/ocaml-ocplib-simplex.spec
index 62ef7a1..92dc32c 100644
--- a/ocaml-ocplib-simplex.spec
+++ b/ocaml-ocplib-simplex.spec
@@ -7,7 +7,7 @@
 
 Name:           ocaml-%{pkgname}
 Version:        0.3
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Simplex algorithm for solving systems of linear inequalities
 
 # The same exception to clause 6 as provided by ocaml applies to this package.
@@ -74,6 +74,9 @@ make local-tests
 %{_libdir}/ocaml/*/*.mli
 
 %changelog
+* Fri May 12 2017 Richard W.M. Jones <rjones@redhat.com> - 0.3-4
+- OCaml 4.04.1 rebuild.
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild