diff --git a/pkgs/os-specific/linux/kernel/linux-3.18.nix b/pkgs/os-specific/linux/kernel/linux-3.18.nix
index 98151295d1b..75f5d6de631 100644
--- a/pkgs/os-specific/linux/kernel/linux-3.18.nix
+++ b/pkgs/os-specific/linux/kernel/linux-3.18.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, perl, buildLinux, ... } @ args:
 
 import ./generic.nix (args // rec {
-  version = "3.18.40";
+  version = "3.18.42";
   extraMeta.branch = "3.18";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.xz";
-    sha256 = "0x94lp4vkw1472m8sq308r8aw96nirkwppkjvqi2240ayw89d5jb";
+    sha256 = "0ymimvy8kp2a2x0h31m3sipwx1h80576ws04k3cl49wgcgjwpwn4";
   };
 
   kernelPatches = args.kernelPatches;