diff --git a/pkgs/development/ocaml-modules/ke/default.nix b/pkgs/development/ocaml-modules/ke/default.nix
index 24382494798..35f083a876e 100644
--- a/pkgs/development/ocaml-modules/ke/default.nix
+++ b/pkgs/development/ocaml-modules/ke/default.nix
@@ -18,6 +18,7 @@ buildDunePackage rec {
   doCheck = true;
 
   minimalOCamlVersion = "4.08";
+  duneVersion = "3";
 
   meta = {
     description = "Fast implementation of queue in OCaml";