diff --git a/flake.nix b/flake.nix
index 5ffa805..fa214b2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -156,8 +156,12 @@
   };
 
   nixConfig = {
-    substituters = [
+    extra-substituters = [
       "https://cache.nixos.org"
+      "https://nix-community.cachix.org"
+    ];
+    extra-trusted-public-keys = [
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
     ];
   };
 }