diff --git a/modules/nix-config/caches.nix b/modules/nix-config/caches.nix
index 50c348b..9bb3e10 100644
--- a/modules/nix-config/caches.nix
+++ b/modules/nix-config/caches.nix
@@ -3,6 +3,7 @@
   nix.settings = {
     substituters = [
       "https://cache.nixos.org"
+      "https://cache.garnix.io"
       "https://nixvim-superredstone.cachix.org"
       "https://spotiflac-cli.cachix.org"
       "https://attic.xuyh0120.win/lantian"
@@ -10,6 +11,7 @@
     ];
     trusted-public-keys = [
       "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
       "nixvim-superredstone.cachix.org-1:mEXHVxEv5dKka3FOxTMFDfdk/DJ0baydsahi+zZIcQE="
       "spotiflac-cli.cachix.org-1:UgpE8P0TO8NuF03vF117r/vgTkjq13Z3JqGzaQdC7xE="
       "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc="