diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index 09359dd..62b757b 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -1,12 +1,13 @@
 Name:           ocaml-findlib
 Version:        1.8.1
-Release:        21%{?dist}.2
+Release:        23%{?dist}
 Summary:        Objective CAML package manager and build helper
 License:        BSD
 
 URL:            http://projects.camlcity.org/projects/findlib.html
 Source0:        http://download.camlcity.org/download/findlib-%{version}.tar.gz
 
+BuildRequires: make
 BuildRequires:  ocaml >= 4.02.0
 BuildRequires:  ocaml-labltk-devel
 BuildRequires:  ocaml-ocamlbuild-devel
@@ -98,6 +99,12 @@ make install \
 
 
 %changelog
+* Mon Feb  1 2021 Richard W.M. Jones <rjones@redhat.com> - 1.8.1-23
+- Bump and rebuild for updated ocaml Dynlink dependency.
+
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.8.1-22
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Tue Sep 01 2020 Richard W.M. Jones <rjones@redhat.com> - 1.8.1-21
 - OCaml 4.11.1 rebuild