diff --git a/pkgs/development/ocaml-modules/mdx/default.nix b/pkgs/development/ocaml-modules/mdx/default.nix
index 1cd6a7d55e552..d11c806448212 100644
--- a/pkgs/development/ocaml-modules/mdx/default.nix
+++ b/pkgs/development/ocaml-modules/mdx/default.nix
@@ -6,13 +6,13 @@
 
 buildDunePackage rec {
   pname = "mdx";
-  version = "2.3.1";
+  version = "2.4.1";
 
   minimalOCamlVersion = "4.08";
 
   src = fetchurl {
     url = "https://github.com/realworldocaml/mdx/releases/download/${version}/mdx-${version}.tbz";
-    hash = "sha256-mkCkX6p41H4pOSvU/sJg0UAWysGweOSrAW6jrcCXQ/M=";
+    hash = "sha256-GkDMkcxVPe0KIMmNQ0NUlTvbdZ7Mka02u7mn3QQSrxM=";
   };
 
   nativeBuildInputs = [ cppo ];