1 files changed, 7 insertions, 5 deletions
diff --git a/pkgs/development/ocaml-modules/dispatch/default.nix b/pkgs/development/ocaml-modules/dispatch/default.nix
index 03f2afbd3141..65baa3dc4982 100644
--- a/pkgs/development/ocaml-modules/dispatch/default.nix
+++ b/pkgs/development/ocaml-modules/dispatch/default.nix
@@ -1,21 +1,23 @@
-{ lib, buildDunePackage, fetchFromGitHub, alcotest, result }:
+{ lib, buildDunePackage, fetchFromGitHub, ocaml, alcotest, result }:
 
 buildDunePackage rec {
   pname = "dispatch";
-  version = "0.4.1";
+  version = "0.5.0";
+
+  useDune2 = true;
 
   src = fetchFromGitHub {
     owner = "inhabitedtype";
     repo = "ocaml-dispatch";
     rev = version;
-    sha256 = "05kb9zcihk50r2haqz8vrlr7kmaka6vrs4j1z500lmnl877as6qr";
+    sha256 = "12r39ylbxc297cbwjadhd1ghxnwwcdzfjk68r97wim8hcgzxyxv4";
   };
 
   propagatedBuildInputs = [ result ];
 
-  checkInputs = lib.optional doCheck alcotest;
+  checkInputs = [ alcotest ];
 
-  doCheck = true;
+  doCheck = lib.versionAtLeast ocaml.version "4.05";
 
   meta = {
     inherit (src.meta) homepage;