diff --git a/ocaml-easy-format.spec b/ocaml-easy-format.spec
index fe3584a..5a3132c 100644
--- a/ocaml-easy-format.spec
+++ b/ocaml-easy-format.spec
@@ -1,8 +1,8 @@
 %define ocamlpck  easy-format
 
 Name:          ocaml-easy-format
-Version:       1.3.3
-Release:       1mamba
+Version:       1.3.4
+Release:       2mamba
 Summary:       Pretty-printing library for OCaml
 Group:         System/Libraries/OCaml
 Vendor:        openmamba
@@ -15,9 +15,10 @@ License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: ocaml
+BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: dune
-BuildRequires: ocaml
 BuildRequires: ocaml-findlib
 
 %description
@@ -42,7 +43,7 @@ dune build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-DESTDIR=%{buildroot} dune install --prefix "/usr" --libdir "%{_lib}/ocaml"
+DESTDIR=%{buildroot} dune install --prefix "/usr" --libdir "%{_libdir}/ocaml"
 
 rm -rf %{buildroot}/usr/doc
 
@@ -68,6 +69,15 @@ rm -rf %{buildroot}/usr/doc
 %doc CHANGES* README.md
 
 %changelog
+* Thu Jul 06 2023 Sdk Build System <sdk@mambasoft.it> 1.3.4-2mamba
+- rebuilt with ocaml 4.14.1
+
+* Sat Jul 01 2023 Automatic Build System <autodist@mambasoft.it> 1.3.4-1mamba
+- automatic version update by autodist
+
+* Fri Jun 30 2023 Sdk Build System <sdk@mambasoft.it> 1.3.3-2mamba
+- rebuilt with ocaml 5.0.0
+
 * Sun May 08 2022 Automatic Build System <autodist@mambasoft.it> 1.3.3-1mamba
 - automatic version update by autodist