diff --git a/flake.nix b/flake.nix
index dc55a34..493f28c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -36,7 +36,7 @@
       system = "x86_64-linux";
       
       chaoticOverlay = chaotic.overlays.default;
-      cachyosKernelOverlay = nix-cachyos-kernel.overlays.default;
+      cachyosKernelOverlay = nix-cachyos-kernel.overlays.pinned;
       
     in {
     nixosConfigurations = {
diff --git a/nixos/system/nix/default.nix b/nixos/system/nix/default.nix
index 1e2c009..528a698 100644
--- a/nixos/system/nix/default.nix
+++ b/nixos/system/nix/default.nix
@@ -12,12 +12,16 @@
       "https://nix-community.cachix.org"
       "https://noctalia.cachix.org"
       "https://nyx.chaotic.cx" 
+      "https://attic.xuyh0120.win/lantian"
+      "https://cache.garnix.io"
     ];
     trusted-public-keys = [
       "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       "noctalia.cachix.org-1:pCOR47nnMEo5thcxNDtzWpOxNFQsBRglJzxWPp3dkU4="
       "nyx.chaotic.cx-1:HfnXSw4pj95iI/n17rIDy40agF+ZjL1siDnBBn7gCnk="
+      "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc="
+      "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
     ];
   };