1 files changed, 4 insertions, 6 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix b/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix
index de8cfd311e54..a436f0b59c07 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/mirage-clock/default.nix
@@ -2,15 +2,13 @@
 
 buildDunePackage rec {
   pname = "mirage-clock";
-  version = "3.1.0";
+  version = "4.2.0";
 
-  useDune2 = true;
-
-  minimumOCamlVersion = "4.06";
+  minimalOCamlVersion = "4.06";
 
   src = fetchurl {
-    url = "https://github.com/mirage/mirage-clock/releases/download/v${version}/mirage-clock-v${version}.tbz";
-    sha256 = "0cqa07aqkamw0dvis1fl46brvk81zvb92iy5076ik62gv9n5a0mn";
+    url = "https://github.com/mirage/mirage-clock/releases/download/v${version}/mirage-clock-${version}.tbz";
+    hash = "sha256-+hfRXVviPHm6dB9ffLiO1xEt4WpEEM6oHHG5gIaImEc=";
   };
 
   meta = {