diff --git a/configuration/rescue-cd.nix b/configuration/rescue-cd.nix
index 92369fa866e..9573753ef68 100644
--- a/configuration/rescue-cd.nix
+++ b/configuration/rescue-cd.nix
@@ -4,7 +4,7 @@
 rec {
 
   
-  nixpkgsRel = "nixpkgs-0.12pre9486";
+  nixpkgsRel = "nixpkgs-0.12pre10056";
 
 
   configuration = {
@@ -85,6 +85,7 @@ rec {
     environment = {
       extraPackages = pkgs: [
         pkgs.vim
+        pkgs.subversion # for nixos-checkout
       ];
     };
    
@@ -133,7 +134,7 @@ rec {
   # Get a recent copy of Nixpkgs.
   nixpkgsTarball = pkgs.fetchurl {
     url = configuration.installer.nixpkgsURL + "/" + nixpkgsRel + ".tar.bz2";
-    md5 = "22deefec0696d2fb263864b97e2238d3";
+    md5 = "a25cd6eb5e753703823fdd3ae86e9f25";
   };