diff --git a/hosts/box/default.nix b/hosts/box/default.nix
index 48de31c..436e79a 100644
--- a/hosts/box/default.nix
+++ b/hosts/box/default.nix
@@ -96,7 +96,7 @@ in {
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  boot.kernelPackages = pkgs.linuxPackages;
+  boot.kernelPackages = pkgs.linuxPackages_hardened;
 
   doas.enable = true;
 
diff --git a/hosts/europa/default.nix b/hosts/europa/default.nix
index 0aeffe9..f15ecc5 100644
--- a/hosts/europa/default.nix
+++ b/hosts/europa/default.nix
@@ -57,7 +57,7 @@ in {
         efiSysMountPoint = "/boot/efi";
       };
     };
-    kernelPackages = pkgs.linuxPackages;
+    kernelPackages = pkgs.linuxPackages_hardened;
     kernelParams = [ "boot.shell_on_fail" "mem_sleep_default=deep" ];
     kernelModules = [ "kvm-intel" ];
   };
diff --git a/hosts/faf/default.nix b/hosts/faf/default.nix
index 3d00a15..9ee2f11 100644
--- a/hosts/faf/default.nix
+++ b/hosts/faf/default.nix
@@ -14,6 +14,8 @@ in {
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
+  boot.kernelPackages = pkgs.linuxPackages_hardened;
+
   boot.supportedFilesystems = [ "zfs" ];
   boot.zfs.devNodes = "/dev/";
 
diff --git a/hosts/h/default.nix b/hosts/h/default.nix
index 9a81a0e..c07c783 100644
--- a/hosts/h/default.nix
+++ b/hosts/h/default.nix
@@ -33,6 +33,7 @@ in {
   boot.loader.grub.version = 2;
   boot.loader.grub.device = "/dev/sda";
 
+  boot.kernelPackages = pkgs.linuxPackages_hardened;
   boot.kernelParams = [ "net.ifnames=0" ];
 
   tailscale.sshOnly = true;
diff --git a/hosts/stan/default.nix b/hosts/stan/default.nix
index 46723d0..ab70813 100644
--- a/hosts/stan/default.nix
+++ b/hosts/stan/default.nix
@@ -29,7 +29,7 @@ in {
         "/crypto_keyfile.bin";
       secrets = { "/crypto_keyfile.bin" = null; };
     };
-    kernelPackages = pkgs.linuxPackages;
+    kernelPackages = pkgs.linuxPackages_hardened;
     kernelParams = [ "intel_idle.max_cstate=4" ];
 
   };