diff --git a/ocaml-pcre-7.5.0-dune-missing-version.patch b/ocaml-pcre-7.5.0-dune-missing-version.patch
new file mode 100644
index 0000000..79733f9
--- /dev/null
+++ b/ocaml-pcre-7.5.0-dune-missing-version.patch
@@ -0,0 +1,8 @@
+--- pcre-ocaml-7.5.0/dune-project.orig	2023-07-09 12:06:12.378107809 +0200
++++ pcre-ocaml-7.5.0/dune-project	2023-07-09 12:06:27.920031121 +0200
+@@ -1,4 +1,5 @@
+ (lang dune 2.7)
++(version %VERSION%)
+ (name pcre)
+ 
+ (generate_opam_files true)
diff --git a/ocaml-pcre.spec b/ocaml-pcre.spec
index 969a0b1..1d0221f 100644
--- a/ocaml-pcre.spec
+++ b/ocaml-pcre.spec
@@ -1,6 +1,6 @@
 Name:          ocaml-pcre
-Version:       7.4.6
-Release:       1mamba
+Version:       7.5.0
+Release:       2mamba
 Summary:       Perl Compatibility Regular Expressions for OCaml
 Group:         System/Libraries
 Vendor:        openmamba
@@ -8,6 +8,7 @@ Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://mmottl.github.io/pcre-ocaml/
 Source:        https://github.com/mmottl/pcre-ocaml.git/%{version}/pcre-ocaml-%{version}.tar.bz2
+Patch0:        ocaml-pcre-7.5.0-dune-missing-version.patch
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -15,6 +16,7 @@ BuildRequires: libpcre-devel
 BuildRequires: ocaml
 BuildRequires: ocaml-runtime
 ## AUTOBUILDREQ-END
+BuildRequires: ocaml >= 4.14.1
 BuildRequires: ocaml-ocamldoc
 BuildRequires: ocaml-findlib
 BuildRequires: dune
@@ -41,6 +43,8 @@ This package includes the %{name} API documentation.
 
 %prep
 %setup -q -n pcre-ocaml-%{version}
+%patch0 -p1
+sed -i "s|%%VERSION%|%{version}|" dune-project
 
 %build
 dune build
@@ -49,10 +53,12 @@ dune build
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 dune install \
    --destdir=%{buildroot} \
+   --prefix=%{_prefix} \
+   --etcdir=%{_sysconfdir} \
+   --mandir=%{_mandir} \
+   --docdir=%{_docdir} \
    --libdir=%{_libdir}/ocaml
 
-rm -r %{buildroot}%{_prefix}/doc
-
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
@@ -81,8 +87,19 @@ rm -r %{buildroot}%{_prefix}/doc
 %files apidocs
 %defattr(-,root,root)
 %doc examples/
+%dir %{_datadir}/doc/pcre
+%{_datadir}/doc/pcre/*
 
 %changelog
+* Sun Jul 09 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 7.5.0-2mamba
+- fix for missing version in dune-project
+
+* Thu Jul 06 2023 Automatic Build System <autodist@mambasoft.it> 7.5.0-1mamba
+- automatic version update by autodist
+
+* Thu Jul 06 2023 Sdk Build System <sdk@mambasoft.it> 7.4.6-2mamba
+- rebuilt with ocaml 4.14.1
+
 * Tue May 04 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 7.4.6-1mamba
 - update to 7.4.6