1 files changed, 18 insertions, 9 deletions
diff --git a/nixpkgs/pkgs/development/ocaml-modules/fiber/default.nix b/nixpkgs/pkgs/development/ocaml-modules/fiber/default.nix
index da5e4580e168..69bd4a067e27 100644
--- a/nixpkgs/pkgs/development/ocaml-modules/fiber/default.nix
+++ b/nixpkgs/pkgs/development/ocaml-modules/fiber/default.nix
@@ -1,20 +1,29 @@
-{ lib, buildDunePackage, fetchFromGitHub, stdune, dyn }:
+{ lib
+, buildDunePackage
+, dyn
+, fetchurl
+, ocaml
+, ppx_expect
+, stdune
+}:
 
 buildDunePackage rec {
   pname = "fiber";
-  version = "unstable-2023-02-28";
+  version = "3.7.0";
 
-  src = fetchFromGitHub {
-    owner = "ocaml-dune";
-    repo = "fiber";
-    rev = "5563b588c1313f128eafa74d66f0626c9128d34d";
-    hash = "sha256-18GfGXpu+uiIiCuLhIx5z5jRkem1nNWaQB6Ms0AE9sE=";
+  src = fetchurl {
+    url = "https://github.com/ocaml-dune/fiber/releases/download/${version}/fiber-lwt-${version}.tbz";
+    hash = "sha256-hkihWuk/5pQpmc42iHQpo5E7YoKcRxTlIMwOehw7loI=";
   };
 
-  duneVersion = "3";
-
   buildInputs = [ stdune dyn ];
 
+  checkInputs = [ ppx_expect ];
+
+  # Tests are Ocaml version dependent
+  # https://github.com/ocaml-dune/fiber/issues/27
+  doCheck = false;
+
   meta = with lib; {
     description = "Structured concurrency library";
     homepage = "https://github.com/ocaml-dune/fiber";