diff --git a/pkgs/os-specific/linux/kernel/linux-4.9.nix b/pkgs/os-specific/linux/kernel/linux-4.9.nix
index 4591018ee94b..c03cfaabb309 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 @@
 { buildPackages, fetchurl, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "4.9.255";
+  version = "4.9.256";
   extraMeta.branch = "4.9";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "066101fzq5lr1pznw1hwlvsdgqpv8n7b2yi09qpv3xi0r41jvpxg";
+    sha256 = "15qlv4m56dzv195xjy4yp8qsrkbmv51vwfg0qcm664hkrb4i32y4";
   };
 } // (args.argsOverride or {}))