diff --git a/ocaml-ancient.spec b/ocaml-ancient.spec
index 6f2c92a..4e5179b 100644
--- a/ocaml-ancient.spec
+++ b/ocaml-ancient.spec
@@ -4,7 +4,7 @@
 
 Name:           ocaml-ancient
 Version:        0.9.0
-Release:        50%{?dist}
+Release:        51%{?dist}
 Summary:        OCaml library for large memory structures and sharing
 License:        LGPLv2+ with exceptions
 
@@ -118,6 +118,9 @@ chrpath --delete $OCAMLFIND_DESTDIR/stublibs/dll*.so
 
 
 %changelog
+* Thu Apr 02 2020 Richard W.M. Jones <rjones@redhat.com> - 0.9.0-51
+- Update all OCaml dependencies for RPM 4.16.
+
 * Wed Feb 26 2020 Richard W.M. Jones <rjones@redhat.com> - 0.9.0-50
 - OCaml 4.10.0 final.