diff --git a/pkgs/development/ocaml-modules/mirage-time/default.nix b/pkgs/development/ocaml-modules/mirage-time/default.nix
index 1780ba05ac4..6b4b5f9ac72 100644
--- a/pkgs/development/ocaml-modules/mirage-time/default.nix
+++ b/pkgs/development/ocaml-modules/mirage-time/default.nix
@@ -1,19 +1,19 @@
-{ lib, buildDunePackage, fetchurl, ocaml_lwt }:
+{ lib, buildDunePackage, fetchurl, lwt }:
 
 buildDunePackage rec {
-  minimumOCamlVersion = "4.06";
+  minimalOCamlVersion = "4.08";
 
   pname = "mirage-time";
   version = "3.0.0";
 
-  useDune2 = true;
+  duneVersion = "3";
 
   src = fetchurl {
     url = "https://github.com/mirage/mirage-time/releases/download/v${version}/mirage-time-v${version}.tbz";
-    sha256 = "sha256-DUCUm1jix+i3YszIzgZjRQRiM8jJXQ49F6JC/yicvXw=";
+    hash = "sha256-DUCUm1jix+i3YszIzgZjRQRiM8jJXQ49F6JC/yicvXw=";
   };
 
-  propagatedBuildInputs = [ ocaml_lwt ];
+  propagatedBuildInputs = [ lwt ];
 
   meta = with lib; {
     homepage = "https://github.com/mirage/mirage-time";
diff --git a/pkgs/development/ocaml-modules/mirage-time/unix.nix b/pkgs/development/ocaml-modules/mirage-time/unix.nix
index c19ca30fe02..9678815edf0 100644
--- a/pkgs/development/ocaml-modules/mirage-time/unix.nix
+++ b/pkgs/development/ocaml-modules/mirage-time/unix.nix
@@ -1,11 +1,12 @@
-{ buildDunePackage, fetchurl, mirage-time, ocaml_lwt, duration }:
+{ buildDunePackage, fetchurl, mirage-time, lwt, duration }:
 
 buildDunePackage {
   pname = "mirage-time-unix";
 
-  inherit (mirage-time) src useDune2 version minimumOCamlVersion;
+  inherit (mirage-time) src version;
+  duneVersion = "3";
 
-  propagatedBuildInputs = [ mirage-time ocaml_lwt duration ];
+  propagatedBuildInputs = [ mirage-time lwt duration ];
 
   meta = mirage-time.meta // {
     description = "Time operations for MirageOS on Unix";