diff --git a/nixos/cachix.nix b/nixos/cachix.nix
index 40775b1a..23f7bef1 100644
--- a/nixos/cachix.nix
+++ b/nixos/cachix.nix
@@ -3,9 +3,11 @@
     binaryCaches = [
       "https://cache.nixos.org/"
       "https://hie-nix.cachix.org"
+      "https://taffy.cachix.org"
     ];
     binaryCachePublicKeys = [
       "hie-nix.cachix.org-1:EjBSHzF6VmDnzqlldGXbi0RM3HdjfTU3yDRi9Pd0jTY="
+      "taffy.cachix.org-1:H0iiOGeXnLOAptADO4i3AiDIOladTcZYxXp+P0lOvHw="
     ];
     trustedUsers = [ "root" "imalison" "kat" ];
   };