diff --git a/nixbld-etc-nixos/configuration.nix b/nixbld-etc-nixos/configuration.nix
index 7316553..d7c7f7e 100644
--- a/nixbld-etc-nixos/configuration.nix
+++ b/nixbld-etc-nixos/configuration.nix
@@ -30,6 +30,7 @@ in
   boot.loader.grub.device = "nodev";
   boot.loader.grub.efiSupport = true;
   boot.loader.efi.canTouchEfiVariables = true;
+  hardware.cpu.amd.updateMicrocode = true;
   boot.supportedFilesystems = ["zfs"];
   boot.kernelParams = ["zfs.l2arc_write_max=536870912"];
   boot.binfmt.emulatedSystems = [ "aarch64-linux" ];