diff --git a/pkgs/development/ocaml-modules/elpi/default.nix b/pkgs/development/ocaml-modules/elpi/default.nix
index e921ffd0645..4467ce3de8c 100644
--- a/pkgs/development/ocaml-modules/elpi/default.nix
+++ b/pkgs/development/ocaml-modules/elpi/default.nix
@@ -35,6 +35,7 @@ buildDunePackage rec {
     ./atd_2_10.patch;
 
   minimalOCamlVersion = "4.04";
+  duneVersion = "3";
 
   # atdgen is both a library and executable
   nativeBuildInputs = [ perl ]