From 28716c579465ab66c1408ad8dd303aa232ab01f1 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Thu, 9 Mar 2023 18:19:08 +0100
Subject: [PATCH] ocamlPackages.chacha: use Dune 3

---
 pkgs/development/ocaml-modules/chacha/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/ocaml-modules/chacha/default.nix b/pkgs/development/ocaml-modules/chacha/default.nix
index ebd73b519f9..28aaad1c46d 100644
--- a/pkgs/development/ocaml-modules/chacha/default.nix
+++ b/pkgs/development/ocaml-modules/chacha/default.nix
@@ -17,7 +17,7 @@ buildDunePackage rec {
     owner = "abeaumont";
     repo = "ocaml-chacha";
     rev = version;
-    sha256 = "sha256-PmeiFloU0k3SqOK1VjaliiCEzDzrzyMSasgnO5fJS1k=";
+    hash = "sha256-PmeiFloU0k3SqOK1VjaliiCEzDzrzyMSasgnO5fJS1k=";
   };
 
   # Ensure compatibility with cstruct ≥ 6.1.0
@@ -27,6 +27,7 @@ buildDunePackage rec {
   })];
 
   minimalOCamlVersion = "4.02";
+  duneVersion = "3";
 
   propagatedBuildInputs = [ cstruct mirage-crypto ];