1 files changed, 4 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix b/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix
index 77d6b4ef7788..de8cfd311e54 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix
@@ -4,6 +4,10 @@ buildDunePackage rec {
   pname = "mirage-clock";
   version = "3.1.0";
 
+  useDune2 = true;
+
+  minimumOCamlVersion = "4.06";
+
   src = fetchurl {
     url = "https://github.com/mirage/mirage-clock/releases/download/v${version}/mirage-clock-v${version}.tbz";
     sha256 = "0cqa07aqkamw0dvis1fl46brvk81zvb92iy5076ik62gv9n5a0mn";