diff --git a/pkgs/tools/package-management/disnix/DisnixWebService/default.nix b/pkgs/tools/package-management/disnix/DisnixWebService/default.nix
index 6ea1a68181a2..845c760c41dc 100644
--- a/pkgs/tools/package-management/disnix/DisnixWebService/default.nix
+++ b/pkgs/tools/package-management/disnix/DisnixWebService/default.nix
@@ -3,8 +3,8 @@
 stdenv.mkDerivation {
   name = "DisnixWebService-0.2";
   src = fetchurl {
-    url = http://hydra.nixos.org/build/19859888/download/4/DisnixWebService-0.2.tar.bz2;
-    sha256 = "1gcrgjscd8mkixi5js6j44yiiyyz2vg7bdn5qp42vr4r8rh9zgq4";
+    url = http://hydra.nixos.org/build/20103911/download/4/DisnixWebService-0.2.tar.bz2;
+    sha256 = "0sxyv93lc9zp8sk37dmpik1vchi5qa5djd5k90xg0n6920dl4snw";
   };
   buildInputs = [ apacheAnt jdk ];
   PREFIX = ''''${env.out}'';
diff --git a/pkgs/tools/package-management/disnix/default.nix b/pkgs/tools/package-management/disnix/default.nix
index 0e522f466741..b3e548583ff0 100644
--- a/pkgs/tools/package-management/disnix/default.nix
+++ b/pkgs/tools/package-management/disnix/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, pkgconfig, dbus_glib, libxml2, libxslt, getopt, nixUnstable, dysnomia, libintlOrEmpty, libiconv }:
 
 stdenv.mkDerivation {
-  name = "disnix-0.3pre0d9af6829c047d9a6fb27bff38af02e9e75ce36f";
+  name = "disnix-0.3pre9d3acde83aa4283cb6fc26874c524a98f39a5bc6";
   
   src = fetchurl {
-    url = http://hydra.nixos.org/build/19868273/download/4/disnix-0.3pre0d9af6829c047d9a6fb27bff38af02e9e75ce36f.tar.gz;
-    sha256 = "1d4p913mk9dbs8vda5cv02rzcrsdj5klwnxp4ana6qss74lh9415";
+    url = http://hydra.nixos.org/build/20103891/download/4/disnix-0.3pre9d3acde83aa4283cb6fc26874c524a98f39a5bc6.tar.gz;
+    sha256 = "04ryf4qlw5jv0xjn6pqy5lkxqlynycsgdjin3ivfhq3pm6i0v65l";
   };
   
   buildInputs = [ pkgconfig dbus_glib libxml2 libxslt getopt nixUnstable libintlOrEmpty libiconv dysnomia ];
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   dontStrip = true;
   
   meta = {
-    description = "A distributed deployment extension for Nix";
+    description = "A Nix-based distributed service deployment tool";
     license = stdenv.lib.licenses.lgpl21Plus;
     maintainers = [ stdenv.lib.maintainers.sander ];
   };
diff --git a/pkgs/tools/package-management/disnix/disnixos/default.nix b/pkgs/tools/package-management/disnix/disnixos/default.nix
index ba21ab557547..cee6f7638fa2 100644
--- a/pkgs/tools/package-management/disnix/disnixos/default.nix
+++ b/pkgs/tools/package-management/disnix/disnixos/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, disnix, socat, pkgconfig, getopt }:
 
 stdenv.mkDerivation {
-  name = "disnixos-0.2pred5b649fa44bd3a1003d6466431ccbd07e79fe50f";
+  name = "disnixos-0.2pre7bbac66b0ed3b637c6ebcfdd8f12055cc330093c";
   
   src = fetchurl {
-    url = http://hydra.nixos.org/build/19868070/download/3/disnixos-0.2pred5b649fa44bd3a1003d6466431ccbd07e79fe50f.tar.gz;
-    sha256 = "0vkj5y8v734m3dmkg71d2jdk7bwgahn44yi62843a0mzjijngdzj";
+    url = http://hydra.nixos.org/build/20062333/download/3/disnixos-0.2pre7bbac66b0ed3b637c6ebcfdd8f12055cc330093c.tar.gz;
+    sha256 = "0d5ql8n93l8xa949cwk7v55lpfcp8j0x8wigqwfh6gim5f21niyb";
   };
   
   buildInputs = [ socat pkgconfig disnix getopt ];
diff --git a/pkgs/tools/package-management/disnix/dysnomia/default.nix b/pkgs/tools/package-management/disnix/dysnomia/default.nix
index e5423ab8d643..a444a92edd00 100644
--- a/pkgs/tools/package-management/disnix/dysnomia/default.nix
+++ b/pkgs/tools/package-management/disnix/dysnomia/default.nix
@@ -19,10 +19,10 @@ assert enableEjabberdDump -> ejabberd != null;
 assert enableMongoDatabase -> mongodb != null;
 
 stdenv.mkDerivation {
-  name = "dysnomia-0.3pre828145ee0bbfb72013a19c15db2947e26179f159";
+  name = "dysnomia-0.3pre92a89d735776366633fdea301fdc6dc537009bba";
   src = fetchurl {
-    url = http://hydra.nixos.org/build/19868062/download/1/dysnomia-0.3pre828145ee0bbfb72013a19c15db2947e26179f159.tar.gz;
-    sha256 = "0rxf6lhb952p7rwrbxhzj3fsqqbrxaksb60zmyqz3h19wjkpaiki";
+    url = http://hydra.nixos.org/build/20062629/download/1/dysnomia-0.3pre92a89d735776366633fdea301fdc6dc537009bba.tar.gz;
+    sha256 = "0dv7ivph2v5j4g5fqdrllxyzmp1hwnsd22n1s61qpkzb6qxaywjj";
   };
   
   preConfigure = if enableEjabberdDump then "export PATH=$PATH:${ejabberd}/sbin" else "";