diff --git a/pkgs/development/ocaml-modules/miou/default.nix b/pkgs/development/ocaml-modules/miou/default.nix
index d02f4fd795c4..bc0423ab20d1 100644
--- a/pkgs/development/ocaml-modules/miou/default.nix
+++ b/pkgs/development/ocaml-modules/miou/default.nix
@@ -2,24 +2,27 @@
   lib,
   buildDunePackage,
   fetchurl,
+  dune-configurator,
 }:
 
-buildDunePackage rec {
+buildDunePackage (finalAttrs: {
   pname = "miou";
-  version = "0.4.0";
+  version = "0.5.5";
 
   minimalOCamlVersion = "5.0.0";
 
   src = fetchurl {
-    url = "https://github.com/robur-coop/miou/releases/download/v${version}/miou-${version}.tbz";
-    hash = "sha256-2a5SET2SPyQloTdcWU9KzPYRcXgK8e8hHbu6OP9R2s8=";
+    url = "https://github.com/robur-coop/miou/releases/download/v${finalAttrs.version}/miou-${finalAttrs.version}.tbz";
+    hash = "sha256-YJZ/nlqpxW77mhcamtCMx5d6/f9MVVBv1QCOz55EyuA=";
   };
 
+  buildInputs = [ dune-configurator ];
+
   meta = {
     description = "Composable concurrency primitives for OCaml";
     homepage = "https://git.robur.coop/robur/miou";
-    changelog = "https://git.robur.coop/robur/miou/src/tag/v${version}/CHANGES.md";
+    changelog = "https://git.robur.coop/robur/miou/src/tag/v${finalAttrs.version}/CHANGES.md";
     license = lib.licenses.mit;
     maintainers = [ ];
   };
-}
+})