diff --git a/pkgs/os-specific/linux/kernel/linux-4.9.nix b/pkgs/os-specific/linux/kernel/linux-4.9.nix
index 39ffdaee2a28..29ff6811aa4f 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 = "4.9.172";
+  version = "4.9.173";
   extraMeta.branch = "4.9";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "03mlbqaj4jz4s72a034i1z8h5swdk04brdzllrlv1h4wk0q8whj9";
+    sha256 = "0s0iypddxqkabjmd72frfk6dca8amk46vmiyy2nh8zbx9y89smxw";
   };
 } // (args.argsOverride or {}))