From 1cc79faa2e854cbb5a18fd80d14c5945efd6a25d Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Tue, 2 May 2023 06:08:03 +0200
Subject: [PATCH] ocamlPackages.ppx_deriving_protobuf: use Dune 3

---
 .../development/ocaml-modules/ppx_deriving_protobuf/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/ocaml-modules/ppx_deriving_protobuf/default.nix b/pkgs/development/ocaml-modules/ppx_deriving_protobuf/default.nix
index 43cc2992c2a..d1e435c1bfc 100644
--- a/pkgs/development/ocaml-modules/ppx_deriving_protobuf/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_deriving_protobuf/default.nix
@@ -6,7 +6,7 @@ buildDunePackage rec {
   pname = "ppx_deriving_protobuf";
   version = "3.0.0";
 
-  useDune2 = true;
+  duneVersion = "3";
 
   src = fetchurl {
     url = "https://github.com/ocaml-ppx/ppx_deriving_protobuf/releases/download/v${version}/ppx_deriving_protobuf-v${version}.tbz";