diff --git a/nixos/nix.nix b/nixos/nix.nix
index a4e65897..d56a0fbd 100644
--- a/nixos/nix.nix
+++ b/nixos/nix.nix
@@ -29,9 +29,11 @@
         keep-derivations = true;
         substituters = [
           "https://cache.nixos.org"
+          "https://cuda-maintainers.cachix.org"
         ];
         trusted-public-keys = [
           "cache.railbird.ai:KhnvcouxtIU2zxUcjJsm4bUK3o1S3p8xMf9qfZGF7/A="
+          "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
         ];
         nix-path = nixPath;
       };