diff --git a/ocaml-time-now.spec b/ocaml-time-now.spec
index f45a5c3..6db0f9a 100644
--- a/ocaml-time-now.spec
+++ b/ocaml-time-now.spec
@@ -11,12 +11,12 @@ URL:            https://github.com/janestreet/%{upname}
 Source0:        %{url}/archive/v%{version}/%{upname}-%{version}.tar.gz
 
 BuildRequires:  ocaml >= 4.04.2
-BuildRequires:  (ocaml-base-devel >= 0.14 with ocaml-base-devel < 0.15)
+BuildRequires:  ocaml-base-devel >= 0.14
 BuildRequires:  ocaml-dune >= 2.0.0
-BuildRequires:  (ocaml-jane-street-headers-devel >= 0.14 with ocaml-jane-street-headers-devel < 0.15)
-BuildRequires:  (ocaml-jst-config-devel >= 0.14 with ocaml-jst-config-devel < 0.15)
-BuildRequires:  (ocaml-ppx-base-devel >= 0.14 with ocaml-ppx-base-devel < 0.15)
-BuildRequires:  (ocaml-ppx-optcomp-devel >= 0.14 with ocaml-ppx-optcomp-devel < 0.15)
+BuildRequires:  ocaml-jane-street-headers-devel >= 0.14
+BuildRequires:  ocaml-jst-config-devel >= 0.14
+BuildRequires:  ocaml-ppx-base-devel >= 0.14
+BuildRequires:  ocaml-ppx-optcomp-devel >= 0.14
 BuildRequires:  ocaml-odoc
 
 %description