diff --git a/pkgs/development/ocaml-modules/junit/alcotest.nix b/pkgs/development/ocaml-modules/junit/alcotest.nix
index 85abaf7f872..6bcdbab3349 100644
--- a/pkgs/development/ocaml-modules/junit/alcotest.nix
+++ b/pkgs/development/ocaml-modules/junit/alcotest.nix
@@ -3,7 +3,8 @@
 buildDunePackage ({
   pname = "junit_alcotest";
 
-  inherit (junit) src version meta useDune2;
+  inherit (junit) src version meta;
+  duneVersion = "3";
 
   propagatedBuildInputs = [
     junit
diff --git a/pkgs/development/ocaml-modules/junit/default.nix b/pkgs/development/ocaml-modules/junit/default.nix
index 4c1df880ec8..cd33ae2f7f5 100644
--- a/pkgs/development/ocaml-modules/junit/default.nix
+++ b/pkgs/development/ocaml-modules/junit/default.nix
@@ -14,7 +14,7 @@ buildDunePackage (rec {
     tyxml
   ];
 
-  useDune2 = true;
+  duneVersion = "3";
   doCheck = true;
 
   meta = with lib; {
diff --git a/pkgs/development/ocaml-modules/junit/ounit.nix b/pkgs/development/ocaml-modules/junit/ounit.nix
index 5f261b07236..c7d53ecc4f5 100644
--- a/pkgs/development/ocaml-modules/junit/ounit.nix
+++ b/pkgs/development/ocaml-modules/junit/ounit.nix
@@ -3,7 +3,8 @@
 buildDunePackage ({
   pname = "junit_ounit";
 
-  inherit (junit) src version meta useDune2;
+  inherit (junit) src version meta;
+  duneVersion = "3";
 
   propagatedBuildInputs = [
     junit