diff --git a/ocaml-cppo.spec b/ocaml-cppo.spec
index 6042072..ad3d662 100644
--- a/ocaml-cppo.spec
+++ b/ocaml-cppo.spec
@@ -5,7 +5,7 @@
 
 Name:           ocaml-cppo
 Version:        1.6.6
-Release:        12%{?dist}
+Release:        13%{?dist}
 Summary:        Equivalent of the C preprocessor for OCaml programs
 
 License:        BSD
@@ -69,6 +69,9 @@ make test
 
 
 %changelog
+* Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.6.6-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
 * Mon Mar  1 11:02:42 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 1.6.6-12
 - OCaml 4.12.0 build