diff --git a/pkgs/development/ocaml-modules/hack_parallel/default.nix b/pkgs/development/ocaml-modules/hack_parallel/default.nix
index afd49b871656..6ce3288f647b 100644
--- a/pkgs/development/ocaml-modules/hack_parallel/default.nix
+++ b/pkgs/development/ocaml-modules/hack_parallel/default.nix
@@ -3,8 +3,8 @@
 buildDunePackage rec {
   pname = "hack_parallel";
   version = "1.0.1";
-  useDune2 = true;
-  minimumOcamlVersion = "4.04.1";
+  duneVersion = "3";
+  minimalOCamlVersion = "4.08";
 
   src = fetchFromGitHub {
     owner = "rvantonder";