diff --git a/configs/nix.nix b/configs/nix.nix
index 6c60884..942fd4a 100644
--- a/configs/nix.nix
+++ b/configs/nix.nix
@@ -9,16 +9,5 @@
   nix = {
     package = pkgs.nixUnstable;
     extraOptions = "experimental-features = nix-command flakes";
-    settings = {
-      substituters = [
-        "http://cache.prism.r"
-        "https://cache.nixos.org/"
-      ];
-      trusted-public-keys = [
-        "cache.prism-1:+S+6Lo/n27XEtvdlQKuJIcb1yO5NUqUCE2lolmTgNJU="
-        "cache.prism-2:YwmCm3/s/D+SxrPKN/ETjlpw/219pNUbpnluatp6FKI="
-        "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs="
-      ];
-    };
   };
 }