diff --git a/pkgs/development/tools/ocaml/dune/3.nix b/pkgs/development/tools/ocaml/dune/3.nix
index 59814a5421bde..631cf146e03ee 100644
--- a/pkgs/development/tools/ocaml/dune/3.nix
+++ b/pkgs/development/tools/ocaml/dune/3.nix
@@ -6,11 +6,11 @@ else
 
 stdenv.mkDerivation rec {
   pname = "dune";
-  version = "3.11.1";
+  version = "3.12.0";
 
   src = fetchurl {
     url = "https://github.com/ocaml/dune/releases/download/${version}/dune-${version}.tbz";
-    hash = "sha256-hm8jB62tr3YE87+dmLtAmHkrqgRpU6ZybJbED8XtP3E=";
+    hash = "sha256-hVFeZLb/uZ+vHqq96RU1d8Gwpech0xnUPvBpqdKrPDs=";
   };
 
   nativeBuildInputs = [ ocaml findlib ];