diff --git a/pkgs/os-specific/linux/kernel/linux-4.9.nix b/pkgs/os-specific/linux/kernel/linux-4.9.nix
index b05a3685c276..0db1d2908e32 100644
--- a/pkgs/os-specific/linux/kernel/linux-4.9.nix
+++ b/pkgs/os-specific/linux/kernel/linux-4.9.nix
@@ -1,11 +1,11 @@
 { stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "4.9.220";
+  version = "4.9.221";
   extraMeta.branch = "4.9";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "0bhbkybzbdsbmrjmb5m7hxxl8b3v6n79zhh86cbr95kzg1hcgnfs";
+    sha256 = "1gh1x73xblxkb927igc3shrqnn49lcscwrq2fixmk9n7jb7q2hp6";
   };
 } // (args.argsOverride or {}))