1 files changed, 9 insertions, 6 deletions
diff --git a/pkgs/development/ocaml-modules/printbox/default.nix b/pkgs/development/ocaml-modules/printbox/default.nix
index f2bbfdcec18a..04361de72221 100644
--- a/pkgs/development/ocaml-modules/printbox/default.nix
+++ b/pkgs/development/ocaml-modules/printbox/default.nix
@@ -1,21 +1,24 @@
-{ lib, fetchFromGitHub, buildDunePackage, uucp, uutf }:
+{ lib, fetchFromGitHub, buildDunePackage, ocaml, uucp, uutf, mdx }:
 
 buildDunePackage rec {
   pname = "printbox";
-  version = "0.4";
+  version = "0.5";
 
-  minimumOCamlVersion = "4.05";
+  useDune2 = true;
+
+  minimumOCamlVersion = "4.03";
 
   src = fetchFromGitHub {
     owner = "c-cube";
     repo = pname;
     rev = version;
-    sha256 = "0bq2v37v144i00h1zwyqhkfycxailr245n97yff0f7qnidxprix0";
+    sha256 = "099yxpp7d9bms6dwzp9im7dv1qb801hg5rx6awpx3rpfl4cvqfn2";
   };
 
-  checkInputs = lib.optionals doCheck [ uucp uutf ];
+  checkInputs = [ uucp uutf mdx.bin ];
 
-  doCheck = true;
+  # mdx is not available for OCaml < 4.07
+  doCheck = lib.versionAtLeast ocaml.version "4.07";
 
   meta = {
     homepage = "https://github.com/c-cube/printbox/";