diff --git a/pkgs/development/libraries/libuv/default.nix b/pkgs/development/libraries/libuv/default.nix
index e039711e457b..3c47a0453dea 100644
--- a/pkgs/development/libraries/libuv/default.nix
+++ b/pkgs/development/libraries/libuv/default.nix
@@ -3,14 +3,14 @@
 , ApplicationServices, CoreServices }:
 
 stdenv.mkDerivation rec {
-  version = "1.9.0";
+  version = "1.9.1";
   name = "libuv-${version}";
 
   src = fetchFromGitHub {
     owner = "libuv";
     repo = "libuv";
     rev = "v${version}";
-    sha256 = "0sq8c8n7xixn2xxp35crprvh35ry18i5mcxgwh12lydwv9ks0d4k";
+    sha256 = "1kc386gkkkymgz9diz1z4r8impcsmki5k88dsiasd6v9bfvq04cc";
   };
 
   buildInputs = [ automake autoconf libtool pkgconfig ]
diff --git a/pkgs/development/web/nodejs/v4.nix b/pkgs/development/web/nodejs/v4.nix
index 4332dca2dae9..f8b8830a6fc0 100644
--- a/pkgs/development/web/nodejs/v4.nix
+++ b/pkgs/development/web/nodejs/v4.nix
@@ -4,9 +4,9 @@
 }@args:
 
 import ./nodejs.nix (args // rec {
-  version = "4.3.1";
+  version = "4.4.4";
   src = fetchurl {
-    url = "http://nodejs.org/dist/v${version}/node-v${version}.tar.gz";
-    sha256 = "0wzf5sirbph5kaik3pm9i2dxbjwqh5qlnqn71azrsv0vhs7dbqk1";
+    url = "http://nodejs.org/dist/v${version}/node-v${version}.tar.xz";
+    sha256 = "055i4wcc5sfqv7ksdxwbxpy4v1qc16lkzgbyhx46cnhl072fv71c";
   };
 })
diff --git a/pkgs/development/web/nodejs/v5.nix b/pkgs/development/web/nodejs/v5.nix
index 02a7ba3ef4b6..12d0dca45038 100644
--- a/pkgs/development/web/nodejs/v5.nix
+++ b/pkgs/development/web/nodejs/v5.nix
@@ -4,9 +4,9 @@
 }@args:
 
 import ./nodejs.nix (args // rec {
-  version = "5.11.0";
+  version = "5.11.1";
   src = fetchurl {
-    url = "http://nodejs.org/dist/v${version}/node-v${version}.tar.gz";
-    sha256 = "14ayv5rgagc6lj7fil0bdbzwj2qxj5picw802rfmmpj9kqdb0hgg";
+    url = "http://nodejs.org/dist/v${version}/node-v${version}.tar.xz";
+    sha256 = "07v60mhswj77m7516zakj3p1py7ixa5jbgj0m7zlr9vygrrc66zi";
   };
 })
diff --git a/pkgs/development/web/nodejs/v6.nix b/pkgs/development/web/nodejs/v6.nix
index 7ce41e3fcdfe..9ed1db66dde9 100644
--- a/pkgs/development/web/nodejs/v6.nix
+++ b/pkgs/development/web/nodejs/v6.nix
@@ -6,7 +6,7 @@
 import ./nodejs.nix (args // rec {
   version = "6.2.0";
   src = fetchurl {
-    url = "https://nodejs.org/download/release/v${version}/node-v${version}.tar.gz";
-    sha256 = "1fcldsnkk6px5fms405j9z2yv6mmscin5x7sma8bdavqgn283zgw";
+    url = "https://nodejs.org/download/release/v${version}/node-v${version}.tar.xz";
+    sha256 = "14p4ah9gsgifj25g2akp7kyqhnqvq726n74h4rfj7wnidxhgwcw6";
   };
 })