From c73ec9f27689ca74b6e2129c55d05e67113d3888 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 17 Mar 2023 07:22:20 +0100
Subject: [PATCH] ocamlPackages.ppx_deriving_yaml: use Dune 3

---
 pkgs/development/ocaml-modules/ppx_deriving_yaml/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/ocaml-modules/ppx_deriving_yaml/default.nix b/pkgs/development/ocaml-modules/ppx_deriving_yaml/default.nix
index c6a0f6d0af6..3fb52de2b8e 100644
--- a/pkgs/development/ocaml-modules/ppx_deriving_yaml/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_deriving_yaml/default.nix
@@ -7,6 +7,7 @@ buildDunePackage rec {
   version = "0.1.1";
 
   minimalOCamlVersion = "4.08";
+  duneVersion = "3";
 
   src = fetchurl {
     url = "https://github.com/patricoferris/ppx_deriving_yaml/releases/download/v${version}/ppx_deriving_yaml-${version}.tbz";