From ac28a8110c16edc139a1ceec153cfffab52e080b Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Tue, 9 May 2023 06:23:29 +0200
Subject: [PATCH] ocamlPackages.ocp-index: use Dune 3

---
 pkgs/development/tools/ocaml/ocp-index/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/tools/ocaml/ocp-index/default.nix b/pkgs/development/tools/ocaml/ocp-index/default.nix
index 6c315960f985..5b37febbb998 100644
--- a/pkgs/development/tools/ocaml/ocp-index/default.nix
+++ b/pkgs/development/tools/ocaml/ocp-index/default.nix
@@ -4,6 +4,8 @@ buildDunePackage rec {
   pname = "ocp-index";
   version = "1.3.4";
 
+  duneVersion = "3";
+
   minimalOCamlVersion = "4.08";
 
   src = fetchFromGitHub {