diff --git a/ocaml-gsl.spec b/ocaml-gsl.spec
index 25db0b2..6ea101f 100644
--- a/ocaml-gsl.spec
+++ b/ocaml-gsl.spec
@@ -2,7 +2,7 @@
 
 Name:           ocaml-gsl
 Version:        1.19.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Interface to GSL (GNU scientific library) for OCaml
 License:        GPLv2
 
@@ -83,6 +83,9 @@ make install
 
 
 %changelog
+* Sat May 13 2017 Richard W.M. Jones <rjones@redhat.com> - 1.19.1-4
+- OCaml 4.04.1 rebuild.
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.19.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild