diff --git a/pkgs/os-specific/linux/kernel/linux-2.6.20.nix b/pkgs/os-specific/linux/kernel/linux-2.6.20.nix
index 315937a68ec..f8979feae05 100644
--- a/pkgs/os-specific/linux/kernel/linux-2.6.20.nix
+++ b/pkgs/os-specific/linux/kernel/linux-2.6.20.nix
@@ -3,11 +3,11 @@ args @ {stdenv, fetchurl, userModeLinux ? false, ...}:
 import ./generic.nix (
 
   rec {
-    version = "2.6.20.12";
+    version = "2.6.20.21";
   
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v2.6/linux-${version}.tar.bz2";
-      sha256 = "1s7vdpg2897q5pcyxxypqcnibwpbdawbimkf3pngmahj8wr9c03x";
+      sha256 = "1ympa2sgnx0sxs30g42zlkv53kfilpc732qqxchcwgv2p0y24hnp";
     };
 
     config =
diff --git a/pkgs/os-specific/linux/kernel/linux-2.6.22.nix b/pkgs/os-specific/linux/kernel/linux-2.6.22.nix
index 41694c17feb..898d9e472ba 100644
--- a/pkgs/os-specific/linux/kernel/linux-2.6.22.nix
+++ b/pkgs/os-specific/linux/kernel/linux-2.6.22.nix
@@ -3,11 +3,11 @@ args @ {stdenv, fetchurl, userModeLinux ? false, ...}:
 import ./generic.nix (
 
   rec {
-    version = "2.6.22.18";
+    version = "2.6.22.19";
   
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v2.6/linux-${version}.tar.bz2";
-      sha256 = "09acj1xr16j9y91gzwzcjhanhcpyac1ah2lc42mfi7d8c0plagry";
+      sha256 = "0jwax5aqfmdfg5pa40zx94x7n5ykr8m5rqczb1m5mc8j98hvnycq";
     };
 
     config =
diff --git a/pkgs/os-specific/linux/kernel/linux-2.6.25.nix b/pkgs/os-specific/linux/kernel/linux-2.6.25.nix
index a0ee9aea779..680304582db 100644
--- a/pkgs/os-specific/linux/kernel/linux-2.6.25.nix
+++ b/pkgs/os-specific/linux/kernel/linux-2.6.25.nix
@@ -3,11 +3,11 @@ args @ {stdenv, fetchurl, userModeLinux ? false, ...}:
 import ./generic.nix (
 
   rec {
-    version = "2.6.25.17";
+    version = "2.6.25.20";
   
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v2.6/linux-${version}.tar.bz2";
-      sha256 = "15jx163rryvvdy65wgfpws8l5cqrczfygsz6v5280i5glhy1dh77";
+      sha256 = "07knyjhvanvclk6xdwi07vfvsmiqciqaj26cn78ayiqqqr9d4f6y";
     };
 
     features = {
diff --git a/pkgs/os-specific/linux/kernel/linux-2.6.26.nix b/pkgs/os-specific/linux/kernel/linux-2.6.26.nix
index fd2aeb61a16..ded4297a1d3 100644
--- a/pkgs/os-specific/linux/kernel/linux-2.6.26.nix
+++ b/pkgs/os-specific/linux/kernel/linux-2.6.26.nix
@@ -5,11 +5,11 @@ assert !userModeLinux;
 import ./generic.nix (
 
   rec {
-    version = "2.6.26.7";
+    version = "2.6.26.8";
   
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v2.6/linux-${version}.tar.bz2";
-      sha256 = "1za4xq9q4gngmdxxwi728hdp30wjkwg4sh07fgyrs4nakjbjsgsj";
+      sha256 = "1jcdg3r7szrk010px7acwi98xhaj00hblv132sllpg89i8vr2aag";
     };
 
     features = {
diff --git a/pkgs/os-specific/linux/kernel/linux-2.6.27.nix b/pkgs/os-specific/linux/kernel/linux-2.6.27.nix
index ae747404bc4..a1e77b1b94b 100644
--- a/pkgs/os-specific/linux/kernel/linux-2.6.27.nix
+++ b/pkgs/os-specific/linux/kernel/linux-2.6.27.nix
@@ -5,11 +5,11 @@ assert !userModeLinux;
 import ./generic.nix (
 
   rec {
-    version = "2.6.27.10";
+    version = "2.6.27.11";
   
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v2.6/linux-${version}.tar.bz2";
-      sha256 = "1g6k7m75cqjznibl249g43plkrgmca96sq5c7bdp18rmnalwh9w5";
+      sha256 = "0mwcycipbs7n9zzzarnlikyl0k7pcs8yk8n5mhz92illxgzzihjn";
     };
 
     features = {