diff --git a/pkgs/os-specific/linux/kernel/linux-4.9.nix b/pkgs/os-specific/linux/kernel/linux-4.9.nix
index 4832c79d02f..47617410b1b 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, hostPlatform, fetchurl, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "4.9.90";
+  version = "4.9.91";
   extraMeta.branch = "4.9";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "0mbl0d6z8yx7bn5m804kv17bh64pd0w0nc8lls4pw335jx7hkc0v";
+    sha256 = "0clqndkj24a9752bc8x7cwdrdl38yarpvwx2yqkc98czxi9agjk0";
   };
 } // (args.argsOverride or {}))