diff --git a/pkgs/development/ocaml-modules/mirage-random-test/default.nix b/pkgs/development/ocaml-modules/mirage-random-test/default.nix
index 81d75db7725..24339b49568 100644
--- a/pkgs/development/ocaml-modules/mirage-random-test/default.nix
+++ b/pkgs/development/ocaml-modules/mirage-random-test/default.nix
@@ -6,10 +6,9 @@ buildDunePackage rec {
   pname = "mirage-random-test";
   version = "0.1.0";
 
-  minimumOCamlVersion = "4.06";
+  minimalOCamlVersion = "4.06";
 
-  # due to cstruct
-  useDune2 = true;
+  duneVersion = "3";
 
   src = fetchurl {
     url = "https://github.com/mirage/${pname}/releases/download/v${version}/${pname}-v${version}.tbz";