diff --git a/ocaml-base64.spec b/ocaml-base64.spec
index 88694cc..9064512 100644
--- a/ocaml-base64.spec
+++ b/ocaml-base64.spec
@@ -5,7 +5,7 @@
 
 Name:           ocaml-base64
 Version:        2.1.2
-Release:        21%{?dist}
+Release:        22%{?dist}
 Summary:        Base64 library for OCaml
 
 License:        ISC
@@ -81,6 +81,9 @@ popd
 
 
 %changelog
+* Sun Jan 19 2020 Richard W.M. Jones <rjones@redhat.com> - 2.1.2-22
+- OCaml 4.10.0+beta1 rebuild.
+
 * Thu Jan 09 2020 Richard W.M. Jones <rjones@redhat.com> - 2.1.2-21
 - OCaml 4.09.0 for riscv64