diff --git a/pkgs/development/ocaml-modules/checkseum/default.nix b/pkgs/development/ocaml-modules/checkseum/default.nix
index e3a455e4a2d2..fd35b468cc6f 100644
--- a/pkgs/development/ocaml-modules/checkseum/default.nix
+++ b/pkgs/development/ocaml-modules/checkseum/default.nix
@@ -1,27 +1,24 @@
 { lib, fetchurl, buildDunePackage, ocaml, dune-configurator, pkg-config
-, bigarray-compat, optint
+, optint
 , fmt, rresult, bos, fpath, astring, alcotest
 , withFreestanding ? false
 , ocaml-freestanding
 }:
 
 buildDunePackage rec {
-  version = "0.3.2";
+  version = "0.3.4";
   pname = "checkseum";
 
-  useDune2 = true;
-
-  minimumOCamlVersion = "4.07";
+  minimalOCamlVersion = "4.07";
 
   src = fetchurl {
-    url = "https://github.com/mirage/checkseum/releases/download/v${version}/checkseum-v${version}.tbz";
-    sha256 = "9cdd282ea1cfc424095d7284e39e4d0ad091de3c3f2580539d03f6966d45ccd5";
+    url = "https://github.com/mirage/checkseum/releases/download/v${version}/checkseum-${version}.tbz";
+    sha256 = "sha256-BL4BOwxXORrkOOba4QjRSetm8bF9JmlKHSFPq24+1zg=";
   };
 
   buildInputs = [ dune-configurator ];
   nativeBuildInputs = [ pkg-config ];
   propagatedBuildInputs = [
-    bigarray-compat
     optint
   ] ++ lib.optionals withFreestanding [
     ocaml-freestanding