diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index 5b681e8..7daa5b9 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -6,7 +6,7 @@
 
 Name:           ocaml-findlib
 Version:        1.3.3
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Objective CAML package manager and build helper
 
 Group:          Development/Libraries
@@ -16,7 +16,7 @@ Source0:        http://download.camlcity.org/download/findlib-%{version}.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 ExcludeArch:    sparc64 s390 s390x
 
-BuildRequires:  ocaml >= 4.00.0
+BuildRequires:  ocaml >= 4.00.1
 BuildRequires:  ocaml-camlp4-devel
 BuildRequires:  ocaml-labltk-devel
 BuildRequires:  ocaml-compiler-libs
@@ -127,6 +127,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Tue Nov 27 2012 Richard W.M. Jones <rjones@redhat.com> - 1.3.3-3
+- BR >= OCaml 4.00.1 so we can't build against the wrong OCaml version.
+
 * Tue Oct 16 2012 Richard W.M. Jones <rjones@redhat.com> - 1.3.3-2
 - Rebuild for OCaml 4.00.1.