diff --git a/ocaml-gsl.spec b/ocaml-gsl.spec
index 132d801..4243f99 100644
--- a/ocaml-gsl.spec
+++ b/ocaml-gsl.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-gsl
 Version:        1.19.1
-Release:        35%{?dist}
+Release:        36%{?dist}
 Summary:        Interface to GSL (GNU scientific library) for OCaml
 License:        GPLv2
 
@@ -90,6 +90,9 @@ make install
 
 
 %changelog
+* Mon Mar  1 17:15:52 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 1.19.1-36
+- OCaml 4.12.0 build
+
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.19.1-35
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild