diff --git a/pkgs/os-specific/linux/kernel/linux-5.15.nix b/pkgs/os-specific/linux/kernel/linux-5.15.nix
index 279eaf85dd2c..f0e341f540a2 100644
--- a/pkgs/os-specific/linux/kernel/linux-5.15.nix
+++ b/pkgs/os-specific/linux/kernel/linux-5.15.nix
@@ -3,7 +3,7 @@
 with lib;
 
 buildLinux (args // rec {
-  version = "5.15.80";
+  version = "5.15.81";
 
   # modDirVersion needs to be x.y.z, will automatically add .0 if needed
   modDirVersion = if (modDirVersionArg == null) then concatStringsSep "." (take 3 (splitVersion "${version}.0")) else modDirVersionArg;
@@ -13,6 +13,6 @@ buildLinux (args // rec {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
-    sha256 = "0kgxznd3sfbmnygjvp9dzhzg5chxlaxk6kldxmh1y0njcrj1lciv";
+    sha256 = "1awny3lgfkh5n2gdksajbyzips8kawz6rkr0p5inwkbmppg5r24g";
   };
 } // (args.argsOverride or { }))