diff --git a/flake.lock b/flake.lock
index ae27df6..75708f4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -155,11 +155,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1710695816,
-        "narHash": "sha256-3Eh7fhEID17pv9ZxrPwCLfqXnYP006RKzSs0JptsN84=",
+        "lastModified": 1710838473,
+        "narHash": "sha256-RLvwdQSENKOaLdKhNie8XqHmTXzNm00/M/THj6zplQo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "614b4613980a522ba49f0d194531beddbb7220d3",
+        "rev": "fa9f817df522ac294016af3d40ccff82f5fd3a63",
         "type": "github"
       },
       "original": {
@@ -187,11 +187,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1710765496,
-        "narHash": "sha256-p7ryWEeQfMwTB6E0wIUd5V2cFTgq+DRRBz2hYGnJZyA=",
+        "lastModified": 1710889954,
+        "narHash": "sha256-Pr6F5Pmd7JnNEMHHmspZ0qVqIBVxyZ13ik1pJtm2QXk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e367f7a1fb93137af22a3908f00b9a35e2d286a7",
+        "rev": "7872526e9c5332274ea5932a0c3270d6e4724f3b",
         "type": "github"
       },
       "original": {
diff --git a/machines/hephaestus/configuration.nix b/machines/hephaestus/configuration.nix
index cbc41d8..ecc70c5 100644
--- a/machines/hephaestus/configuration.nix
+++ b/machines/hephaestus/configuration.nix
@@ -148,9 +148,7 @@ in
     hostPlatform = "x86_64-linux";
     config = {
       allowUnfree = true;
-      permittedInsecurePackages = [
-        "nix-2.16.2"
-      ];
+      permittedInsecurePackages = [ ];
     };
   };
 
diff --git a/machines/zelus/configuration.nix b/machines/zelus/configuration.nix
index 4a249b1..012e130 100644
--- a/machines/zelus/configuration.nix
+++ b/machines/zelus/configuration.nix
@@ -6,9 +6,7 @@ in
   nixpkgs = {
     config = {
       allowUnfree = true;
-      permittedInsecurePackages = [
-        "nix-2.16.2"
-      ];
+      permittedInsecurePackages = [ ];
     };
   };