diff --git a/ocaml-sedlex.spec b/ocaml-sedlex.spec
index 9c6eb77..0a956b0 100644
--- a/ocaml-sedlex.spec
+++ b/ocaml-sedlex.spec
@@ -1,8 +1,8 @@
 %define ocamlpck  sedlex
 
 Name:          ocaml-sedlex
-Version:       2.5
-Release:       4mamba
+Version:       2.6
+Release:       1mamba
 Summary:       An OCaml lexer generator for Unicode 
 Group:         System/Libraries/OCaml
 Vendor:        openmamba
@@ -23,11 +23,12 @@ BuildRequires: ocaml-seq-devel
 BuildRequires: ocaml-sexplib0-devel
 ## AUTOBUILDREQ-END
 BuildRequires: ocaml-sexplib0-devel >= 0:0.15.1-1mamba
+BuildRequires: ocaml-gen-devel >= 1.1
+BuildRequires: ocaml-ppxlib-devel >= 0.29.1
 BuildRequires: dune
 BuildRequires: ocaml
 BuildRequires: ocaml-camlp4-devel
 BuildRequires: ocaml-findlib
-BuildRequires: ocaml-gen-devel >= 1.0-2mamba
 Requires:      ocaml-runtime
 Requires:      ocaml-uchar
 
@@ -80,6 +81,10 @@ rm -rf %{buildroot}/usr/doc
 %doc examples/
 
 %changelog
+* Sun Mar 19 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.6-1mamba
+- update to 2.6
+- rebuilt with ocaml-ppxlib 0.29.1 and ocaml-gen 1.1
+
 * Sat Jun 25 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.5-4mamba
 - rebuilt by autoport with build requirements: ocaml-sexplib0-devel>=0:0.15.1-1mamba--buildreqocaml-sexplib0-devel>=0:0.15.1-1mamba