diff --git a/pkgs/by-name/ow/owi/package.nix b/pkgs/by-name/ow/owi/package.nix
index 83c2ae8f4d13..b94a14af7dc9 100644
--- a/pkgs/by-name/ow/owi/package.nix
+++ b/pkgs/by-name/ow/owi/package.nix
@@ -11,18 +11,18 @@
 }:
 
 let
-  ocamlPackages = ocaml-ng.ocamlPackages_5_2;
+  ocamlPackages = ocaml-ng.ocamlPackages_5_3;
 in
 ocamlPackages.buildDunePackage {
   pname = "owi";
-  version = "0.2-unstable-2025-12-13";
+  version = "0.2-unstable-2025-12-22";
 
   src = fetchFromGitHub {
     owner = "ocamlpro";
     repo = "owi";
-    rev = "0ce0a3136bfeaca01bbf9c596d79c093282cff3f";
+    rev = "014840cd9d87c912577822b171407bf7453373f0";
     fetchSubmodules = true;
-    hash = "sha256-2WrUbrwi3dSXf/eEdZCK1SnYzo52aJeTfqtN65bjW60=";
+    hash = "sha256-Mjd2XyPmAsonCcV98L8p9S0yYlJV8OEg2TPjZhzVBj8=";
   };
 
   nativeBuildInputs = with ocamlPackages; [
@@ -42,15 +42,11 @@ ocamlPackages.buildDunePackage {
     bos
     cmdliner
     digestif
-    dolmen_type
     dune-build-info
     dune-site
-    hc
-    integers
     menhirLib
     ocaml_intrinsics
     ocamlgraph
-    patricia-tree
     prelude
     processor
     scfg
@@ -61,7 +57,6 @@ ocamlPackages.buildDunePackage {
     xmlm
     yojson
     z3
-    zarith
   ];
 
   postInstall = ''
@@ -88,7 +83,10 @@ ocamlPackages.buildDunePackage {
     homepage = "https://ocamlpro.github.io/owi/";
     downloadPage = "https://github.com/OCamlPro/owi";
     license = lib.licenses.agpl3Plus;
-    maintainers = [ lib.maintainers.ethancedwards8 ];
+    maintainers = with lib.maintainers; [
+      ethancedwards8
+      redianthus
+    ];
     teams = with lib.teams; [ ngi ];
     mainProgram = "owi";
     badPlatforms = lib.platforms.darwin;