diff --git a/systems/PC-Fixe/configuration.nix b/systems/PC-Fixe/configuration.nix
index 7b44c62..0414784 100644
--- a/systems/PC-Fixe/configuration.nix
+++ b/systems/PC-Fixe/configuration.nix
@@ -159,8 +159,6 @@
   services.syncthing.user = "paul";
   services.syncthing.group = "users";
 
-  virtualisation.rkt.enable = true;
-
   # This value determines the NixOS release with which your system is to be
   # compatible, in order to avoid breaking some software such as database
   # servers. You should change this only after NixOS release notes say you
diff --git a/systems/PC-Fixe/hardware-configuration.nix b/systems/PC-Fixe/hardware-configuration.nix
index 2439beb..fcbbff7 100644
--- a/systems/PC-Fixe/hardware-configuration.nix
+++ b/systems/PC-Fixe/hardware-configuration.nix
@@ -12,6 +12,8 @@
   boot.kernelModules = [ "kvm-intel" "nct6775" ];
   boot.extraModulePackages = [ ];
 
+  hardware.cpu.intel.updateMicrocode = true;
+
   fileSystems."/" =
     { device = "/dev/disk/by-uuid/509a5842-56fe-40bd-8b00-6bda87e02e5e";
       fsType = "ext4";