diff --git a/flake.lock b/flake.lock
index 5a71f47..3d6bbe3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -204,11 +204,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1709780214,
-        "narHash": "sha256-p4iDKdveHMhfGAlpxmkCtfQO3WRzmlD11aIcThwPqhk=",
+        "lastModified": 1710036095,
+        "narHash": "sha256-joYx0arQtHM/7VhUY5ByP+jlf8XeJkK2fBdri8vK918=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f945939fd679284d736112d3d5410eb867f3b31c",
+        "rev": "f592a7ea771bc3c417f7e3026af615d0c6be84ce",
         "type": "github"
       },
       "original": {
@@ -220,11 +220,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1709677081,
-        "narHash": "sha256-tix36Y7u0rkn6mTm0lA45b45oab2cFLqAzDbJxeXS+c=",
+        "lastModified": 1710021367,
+        "narHash": "sha256-FuMVdWqXMT38u1lcySYyv93A7B8wU0EGzUr4t4jQu8g=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "880992dcc006a5e00dd0591446fdf723e6a51a64",
+        "rev": "b94a96839afcc56de3551aa7472b8d9a3e77e05d",
         "type": "github"
       },
       "original": {
diff --git a/machines/hephaestus/configuration.nix b/machines/hephaestus/configuration.nix
index 5dd11f4..a56b41d 100644
--- a/machines/hephaestus/configuration.nix
+++ b/machines/hephaestus/configuration.nix
@@ -23,7 +23,12 @@ in
 
   hardware.opengl.enable = true;
 
-  nixpkgs.config.allowUnfree = true;
+  nixpkgs.config = {
+    allowUnfree = true;
+    permittedInsecurePackages = [
+      "nix-2.16.2"
+    ];
+  };
 
   networking = {
     iproute2.enable = true;
diff --git a/outputs.nix b/outputs.nix
index 9a5b658..601f2cb 100644
--- a/outputs.nix
+++ b/outputs.nix
@@ -13,9 +13,7 @@
       unstable = import nixpkgs-unstable {
         system = "x86_64-linux";
         config.allowUnfree = true;
-        config.permittedInsecurePackages = [
-          "electron-25.9.0" # caused by obsidian
-        ];
+        config.permittedInsecurePackages = [ ];
       };
       defaultModules = [
         home-manager.nixosModules.home-manager