diff --git a/pkgs/development/ocaml-modules/jwto/default.nix b/pkgs/development/ocaml-modules/jwto/default.nix
index a4cf0aae6918..1c7622f2805a 100644
--- a/pkgs/development/ocaml-modules/jwto/default.nix
+++ b/pkgs/development/ocaml-modules/jwto/default.nix
@@ -5,6 +5,8 @@ buildDunePackage rec {
   pname = "jwto";
   version = "0.3.0";
 
+  useDune2 = true;
+
   minimumOCamlVersion = "4.05";
 
   src = fetchFromGitHub {