From e066751227b8ddf9d61c3f52a552e4d7a1da1c2a Mon Sep 17 00:00:00 2001
From: Masayuki Takeda <mtakeda.enigsol@gmail.com>
Date: Thu, 22 Feb 2018 13:06:07 +0900
Subject: [PATCH] jbuilder: 1.0+beta14 -> 1.0+beta18

---
 pkgs/development/tools/ocaml/jbuilder/default.nix | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/pkgs/development/tools/ocaml/jbuilder/default.nix b/pkgs/development/tools/ocaml/jbuilder/default.nix
index bef994f30b7..2bfc832a0f0 100644
--- a/pkgs/development/tools/ocaml/jbuilder/default.nix
+++ b/pkgs/development/tools/ocaml/jbuilder/default.nix
@@ -1,10 +1,13 @@
-{ stdenv, fetchzip, ocaml, opam }:
+{ stdenv, fetchFromGitHub, ocaml, opam }:
 
-stdenv.mkDerivation {
-  name = "jbuilder-1.0+beta14";
-  src = fetchzip {
-    url = http://github.com/janestreet/jbuilder/archive/1.0+beta14.tar.gz;
-    sha256 = "0vq4chqp7bm3rd5n6ry1j1ia6xqlz463059ljd1jmawa4dcyilvl";
+stdenv.mkDerivation rec {
+  name = "jbuilder-${version}";
+  version = "1.0+beta18";
+  src = fetchFromGitHub {
+    owner = "ocaml";
+    repo = "dune";
+    rev = "${version}";
+    sha256 = "1xw4i5qd2ndnddzb8b14fb52qxnjpr3lr9wx3mprv4f294kdg0l6";
   };
 
   buildInputs = [ ocaml ];