diff --git a/nixos/hosts/asus-gl553vd/default.nix b/nixos/hosts/asus-gl553vd/default.nix
index 05f140e..be6f7b2 100644
--- a/nixos/hosts/asus-gl553vd/default.nix
+++ b/nixos/hosts/asus-gl553vd/default.nix
@@ -14,8 +14,8 @@
     ../../shared/encrypted-dns.nix
   ];
 
-  # Use latest kernel
-  boot.kernelPackages = pkgs.linuxPackages_6_1;
+  # Use latest lts kernel
+  boot.kernelPackages = pkgs.unstable.linuxPackages_6_6_hardened;
 
   # Use the systemd-boot EFI boot loader.
   boot.loader = {
diff --git a/nixos/hosts/home/default.nix b/nixos/hosts/home/default.nix
index 43a413a..8493c88 100644
--- a/nixos/hosts/home/default.nix
+++ b/nixos/hosts/home/default.nix
@@ -18,7 +18,7 @@
   # Configure kernel
   boot = {
     # I cannot use rtl88x2bu driver in stable
-    kernelPackages = pkgs.unstable.linuxPackages_6_1;
+    kernelPackages = pkgs.unstable.linuxPackages_6_6_hardened;
     extraModulePackages = with config.boot.kernelPackages; [
       rtl88x2bu
     ];
diff --git a/nixos/hosts/istal/default.nix b/nixos/hosts/istal/default.nix
index ea65136..aaef110 100644
--- a/nixos/hosts/istal/default.nix
+++ b/nixos/hosts/istal/default.nix
@@ -16,7 +16,7 @@ in
     ./services/wireguard.nix
   ];
 
-  boot.kernelPackages = pkgs.linuxPackages_6_1;
+  boot.kernelPackages = pkgs.unstable.linuxPackages_6_6_hardened;
   boot.tmp.cleanOnBoot = true;
   zramSwap.enable = true;
 
diff --git a/nixos/hosts/tatos/default.nix b/nixos/hosts/tatos/default.nix
index 6517bb1..9e513f0 100644
--- a/nixos/hosts/tatos/default.nix
+++ b/nixos/hosts/tatos/default.nix
@@ -16,7 +16,7 @@ in
     ./services/wireguard.nix
   ];
 
-  boot.kernelPackages = pkgs.linuxPackages_6_1;
+  boot.kernelPackages = pkgs.unstable.linuxPackages_6_6_hardened;
   boot.tmp.cleanOnBoot = true;
 
   zramSwap.enable = true;