diff --git a/flake.lock b/flake.lock
index b52c718e..7eb2ffe5 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "arcexprs": {
       "flake": false,
       "locked": {
-        "lastModified": 1680285462,
-        "narHash": "sha256-iuDi6MUfLxGYQUgpy5x7HBDIGf8dnPGMkYs/9qujmyE=",
+        "lastModified": 1681050793,
+        "narHash": "sha256-pE96pyBOfBvvWPqvYmnAPJxVYMy5gRlkI2RNyYH1oVs=",
         "owner": "arcnmx",
         "repo": "nixexprs",
-        "rev": "c425430b7c084e154a6ce56b496d4d04f6f60c68",
+        "rev": "d9ff2e1cbfebda8436820f255952da04003ec761",
         "type": "github"
       },
       "original": {
@@ -250,12 +250,15 @@
       }
     },
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1680946745,
-        "narHash": "sha256-KqGlwg9UTDsFBZZB8wzXgMnc8XQm95LtSbFvBsnqkPI=",
+        "lastModified": 1681037374,
+        "narHash": "sha256-XL6X3VGbEFJZDUouv2xpKg2Aljzu/etPLv5e1FPt1q0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "946da791763db1c306b86a8bd3828bf5814a1247",
+        "rev": "033b9f258ca96a10e543d4442071f614dc3f8412",
         "type": "github"
       },
       "original": {
@@ -426,11 +429,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1680758185,
-        "narHash": "sha256-sCVWwfnk7zEX8Z+OItiH+pcSklrlsLZ4TJTtnxAYREw=",
+        "lastModified": 1681036984,
+        "narHash": "sha256-AbScJXshYzbeUKHh+Y3OICc3iAtr+NqJ3Xb81GW+ptU=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0e19daa510e47a40e06257e205965f3b96ce0ac9",
+        "rev": "fd531dee22c9a3d4336cc2da39e8dd905e8f3de4",
         "type": "github"
       },
       "original": {
@@ -442,11 +445,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1680390120,
-        "narHash": "sha256-RyDJcG/7mfimadlo8vO0QjW22mvYH1+cCqMuigUntr8=",
+        "lastModified": 1681005198,
+        "narHash": "sha256-5LrnBeXR7Hv8OXh6eany7br4qBW+ZNl4LKf1CJu9zbg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c1e2efaca8d8a3db6a36f652765d6c6ba7bb8fae",
+        "rev": "e45cc0138829ad86e7ff17a76acf2d05e781e30a",
         "type": "github"
       },
       "original": {
@@ -474,11 +477,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1680932643,
-        "narHash": "sha256-vHkZJnPfA788UQ0zsfj4P09pVqBsn4niMp5qhN3ue28=",
+        "lastModified": 1681105572,
+        "narHash": "sha256-sD8OIgdo/vAkLVpWlslAyAclB8XnFRAik05HXMPsjI0=",
         "owner": "nix-community",
         "repo": "nur",
-        "rev": "c468956d1604fb0182d24448a1cb45ab948bf4ca",
+        "rev": "01d38310cbc1669d1ce9384c33f549a51c7e7f4b",
         "type": "github"
       },
       "original": {
@@ -663,11 +666,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1680404136,
-        "narHash": "sha256-06D8HJmRv4DdpEQGblMhx2Vm81SBWM61XBBIx7QQfo0=",
+        "lastModified": 1681008913,
+        "narHash": "sha256-6C4BknF+cwCnl/A2fFdlAnc3LMV7f7XqOL09UhLZ9tA=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "b93eb910f768f9788737bfed596a598557e5625d",
+        "rev": "ddc6f124cb9be22d2ba066064c28bc19039a6bce",
         "type": "github"
       },
       "original": {
@@ -716,14 +719,29 @@
         "type": "github"
       }
     },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "tf-nix": {
       "flake": false,
       "locked": {
-        "lastModified": 1680807133,
-        "narHash": "sha256-iR6kwmoKE1qknNbId9jl2iY4s9ENq4fdh0+/Nuot9zo=",
+        "lastModified": 1681057871,
+        "narHash": "sha256-LQF4/PP4BMMO5XIwO2pSvgFbPIPLas1g7sbNrtrYsX8=",
         "owner": "arcnmx",
         "repo": "tf-nix",
-        "rev": "a99b0d5b89bf396b063ab4dc03f8ab35eebf7507",
+        "rev": "ddac94765835f5c19f4ea5c8cf92b526352bdad0",
         "type": "github"
       },
       "original": {
diff --git a/nixos/systems/tewi/home-assistant.nix b/nixos/systems/tewi/home-assistant.nix
index e213345e..fa8f6206 100644
--- a/nixos/systems/tewi/home-assistant.nix
+++ b/nixos/systems/tewi/home-assistant.nix
@@ -185,20 +185,6 @@ in {
       zone = {};
       sensor = {};
     };
-    package = pkgs.home-assistant.override {
-      packageOverrides = self: super: {
-        pysnmplib = if lib.versionAtLeast self.brother.version "2.3.0"
-          then lib.warn "outdated pysnmplib override can be deleted" super.pysnmplib
-          else super.pysnmplib.overrideAttrs (old: rec {
-            version = "5.0.20";
-            src = pkgs.fetchFromGitHub {
-              inherit (old.src) owner repo;
-              rev = "v${version}";
-              hash = "sha256-SrtOn9zETtobT6nMVHLi6hP7VZGBvXvFzoThTi3ITag=";
-            };
-          });
-      };
-    };
     extraPackages = python3Packages: with python3Packages; [
       psycopg2
       aiohomekit