diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,11 @@
 # Changelog for elm2nix
 
+## 0.1.1 (2019-02-19)
+
+### Changes
+
+- #22 Support req-0.1.0.0 (@domenkozar)
+
 ## 0.1.0 (2018-12-28)
 
 - Initial release (@domenkozar)
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # elm2nix
 
-[![Build Status](https://travis-ci.org/domenkozar/elm2nix.svg?branch=master)](https://travis-ci.org/domenkozar/elm2nix)
+[![Build Status](https://travis-ci.org/hercules-ci/elm2nix.svg?branch=master)](https://travis-ci.org/hercules-ci/elm2nix)
 [![Hackage](https://img.shields.io/hackage/v/elm2nix.svg)](https://hackage.haskell.org/package/elm2nix)
 
 Convert an [Elm](http://elm-lang.org/) project into
@@ -18,17 +18,27 @@
 
 ## Installation
 
-    $ nix-shell -p stack --run "stack install --nix"
+### From nixpkgs (recommended)
 
+Make sure you have up to date stable or unstable nixpkgs channel.
+
+    $ nix-env -iA elm2nix
+
+### From source
+
+    $ git clone https://github.com/domenkozar/elm2nix.git
+    $ cd elm2nix
+    $ nix-env -if .
+
 ## Usage
 
     $ git clone https://github.com/evancz/elm-todomvc.git
     $ cd elm-todomvc
-    $ ~/.local/bin/elm2nix init > default.nix
-    $ ~/.local/bin/elm2nix convert > elm-srcs.nix
-    $ ~/.local/bin/elm2nix snapshot > versions.dat
+    $ elm2nix init > default.nix
+    $ elm2nix convert > elm-srcs.nix
+    $ elm2nix snapshot > versions.dat
     $ nix-build
-    $ chromium ./result/index.html
+    $ chromium ./result/Main.html
 
 ## Running tests (as per CI)
 
diff --git a/elm2nix.cabal b/elm2nix.cabal
--- a/elm2nix.cabal
+++ b/elm2nix.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           elm2nix
-version:        0.1.0
+version:        0.1.1
 synopsis:       Turn your Elm project into buildable Nix project
 description:    Please see the README on Github at <https://github.com/domenkozar/elm2nix#readme>
 homepage:       https://github.com/domenkozar/elm2nix#readme
diff --git a/src/Elm2Nix/PackagesSnapshot.hs b/src/Elm2Nix/PackagesSnapshot.hs
--- a/src/Elm2Nix/PackagesSnapshot.hs
+++ b/src/Elm2Nix/PackagesSnapshot.hs
@@ -8,6 +8,7 @@
 
 -}
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE CPP #-}
 module Elm2Nix.PackagesSnapshot
   ( snapshot
   ) where
@@ -17,7 +18,10 @@
 import qualified Data.Binary as Binary
 import Data.Binary (Binary, put, get, putWord8, getWord8)
 import qualified Data.Map as Map
+#if MIN_VERSION_req(2,0,0)
+#else
 import Data.Default (def)
+#endif
 import Data.Map (Map)
 import Data.Text (Text)
 import qualified Data.Text as Text
@@ -92,9 +96,15 @@
   get = liftM2 PackageRegistry get get
   put (PackageRegistry a b) = put a >> put b
 
+#if MIN_VERSION_req(2,0,0)
+defHttpConfig = Req.defaultHttpConfig
+#else
+defHttpConfig = def
+#endif
+
 snapshot :: String -> IO ()
 snapshot dir = do
-  r <- Req.runReq def $
+  r <- Req.runReq defHttpConfig $
     Req.req
     Req.POST
     (Req.https "package.elm-lang.org" Req./: "all-packages")