diff --git a/pkgs/development/ocaml-modules/terminal/default.nix b/pkgs/development/ocaml-modules/terminal/default.nix
index e97fb223e41..1700da06068 100644
--- a/pkgs/development/ocaml-modules/terminal/default.nix
+++ b/pkgs/development/ocaml-modules/terminal/default.nix
@@ -8,11 +8,11 @@ buildDunePackage rec {
   version = "0.2.1";
 
   minimalOCamlVersion = "4.03";
-  useDune2 = true;
+  duneVersion = "3";
 
   src = fetchurl {
     url = "https://github.com/CraigFe/progress/releases/download/${version}/terminal-${version}.tbz";
-    sha256 = "sha256:0vjqkvmpyi8kvmb4vrx3f0994rph8i9pvlrz1dyi126vlb2zbrvs";
+    hash = "sha256:0vjqkvmpyi8kvmb4vrx3f0994rph8i9pvlrz1dyi126vlb2zbrvs";
   };
 
   propagatedBuildInputs = [ stdlib-shims uutf uucp ];