2 files changed, 22 insertions, 2 deletions
diff --git a/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/default.nix b/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix
index bcd0a519899..faadaf214f5 100644
--- a/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/default.nix
+++ b/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix
@@ -2,13 +2,13 @@
 
 buildDunePackage rec {
    pname = "ocaml-migrate-parsetree";
-   version = "1.7.3";
+   version = "1.8.0";
 
    src = fetchFromGitHub {
      owner = "ocaml-ppx";
      repo = pname;
      rev = "v${version}";
-     sha256 = "0336vz0galjnsazbmkxjwdv1qvdqsx2rgrvp778xgq2fzasz45cx";
+     sha256 = "16x8sxc4ygxrr1868qpzfqyrvjf3hfxvjzmxmf6ibgglq7ixa2nq";
    };
 
    propagatedBuildInputs = [ ppx_derivers result ];
diff --git a/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/2.1.x.nix b/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/2.1.x.nix
new file mode 100644
index 00000000000..afe3d34963a
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ocaml-migrate-parsetree/2.1.x.nix
@@ -0,0 +1,20 @@
+{ lib, fetchurl, buildDunePackage }:
+
+buildDunePackage rec {
+   pname = "ocaml-migrate-parsetree";
+   version = "2.1.0";
+
+   minimumOCamlVersion = "4.02";
+
+   src = fetchurl {
+     url = "https://github.com/ocaml-ppx/${pname}/releases/download/v${version}/${pname}-v${version}.tbz";
+     sha256 = "07x7lm45kny0mi0fjvzw51445brm0dgy099cw0gpyly0wj77hyrq";
+   };
+
+   meta = {
+     description = "Convert OCaml parsetrees between different major versions";
+     license = lib.licenses.lgpl21;
+     maintainers = with lib.maintainers; [ vbgl sternenseemann ];
+     homepage = "https://github.com/ocaml-ppx/ocaml-migrate-parsetree";
+   };
+}