diff --git a/flake.lock b/flake.lock
index dd6178e..68c2c6a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -17,11 +17,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1739866667,
-        "narHash": "sha256-EO1ygNKZlsAC9avfcwHkKGMsmipUk1Uc0TbrEZpkn64=",
+        "lastModified": 1741173522,
+        "narHash": "sha256-k7VSqvv0r1r53nUI/IfPHCppkUAddeXn843YlAC5DR0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "73cf49b8ad837ade2de76f87eb53fc85ed5d4680",
+        "rev": "d69ab0d71b22fa1ce3dbeff666e6deb4917db049",
         "type": "github"
       },
       "original": {
diff --git a/modules/system/nix/module.nix b/modules/system/nix/module.nix
index d57d631..696f22c 100644
--- a/modules/system/nix/module.nix
+++ b/modules/system/nix/module.nix
@@ -138,12 +138,10 @@ in {
       # Substituters to pull from.
       substituters = [
         "https://cache.nixos.org" # funny binary cache
-        "https://helix.cachix.org" # a chache for helix
       ];
 
       trusted-public-keys = [
         "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-        "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
       ];
     };
   };