diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index 79f73ebb8c3..e433aa60579 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -5,11 +5,11 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "nix-1.0";
+  name = "nix-1.1";
 
   src = fetchurl {
-    url = "http://hydra.nixos.org/build/2609700/download/4/${name}.tar.bz2";
-    sha256 = "27f1d4d2a5fb1951bfc9e706c0894a961aed1afe0d095e16eb8fbef94ee7ec17";
+    url = "http://hydra.nixos.org/build/2860022/download/4/${name}.tar.bz2";
+    sha256 = "edb2fc444eda49be144ca2901f1fc9472cd24896775ba02556ded5705863d324";
   };
 
   buildNativeInputs = [ perl pkgconfig ];
@@ -53,6 +53,7 @@ stdenv.mkDerivation rec {
       '' + stdenv.lib.optionalString (
           stdenv.cross ? nix && stdenv.cross.nix ? system
       ) ''--with-system=${stdenv.cross.nix.system}'';
+      
     doInstallCheck = false;
   };
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2470be7eff7..be57d1b6ce1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8529,10 +8529,14 @@ let
     stateDir = getConfig [ "nix" "stateDir" ] "/nix/var";
   };
 
+  nixUnstable = nix;
+
+  /*
   nixUnstable = callPackage ../tools/package-management/nix/unstable.nix {
     storeDir = getConfig [ "nix" "storeDir" ] "/nix/store";
     stateDir = getConfig [ "nix" "stateDir" ] "/nix/var";
   };
+  */
 
   nixCustomFun = src: preConfigure: enableScripts: configureFlags:
     import ../tools/package-management/nix/custom.nix {