diff --git a/flake.lock b/flake.lock
index f312499..d8c6092 100644
--- a/flake.lock
+++ b/flake.lock
@@ -40,11 +40,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1668681692,
-        "narHash": "sha256-Ht91NGdewz8IQLtWZ9LCeNXMSXHUss+9COoqu6JLmXU=",
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "009399224d5e398d03b22badca40a37ac85412a1",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
         "type": "github"
       },
       "original": {
@@ -76,41 +76,26 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1716633019,
-        "narHash": "sha256-xim1b5/HZYbWaZKyI7cn9TJCM6ewNVZnesRr00mXeS4=",
+        "lastModified": 1717696253,
+        "narHash": "sha256-1+ua0ggXlYYPLTmMl3YeYYsBXDSCqT+Gw3u6l4gvMhA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9d29cd266cebf80234c98dd0b87256b6be0af44e",
+        "rev": "9b5328b7f761a7bbdc0e332ac4cf076a3eedb89b",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-23.11",
-        "type": "indirect"
-      }
-    },
-    "nixpkgs-23_05": {
-      "locked": {
-        "lastModified": 1704290814,
-        "narHash": "sha256-LWvKHp7kGxk/GEtlrGYV68qIvPHkU9iToomNFGagixU=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "ref": "nixos-23.05",
+        "ref": "nixos-24.05",
         "type": "indirect"
       }
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1716509168,
-        "narHash": "sha256-4zSIhSRRIoEBwjbPm3YiGtbd8HDWzFxJjw5DYSDy1n8=",
+        "lastModified": 1717602782,
+        "narHash": "sha256-pL9jeus5QpX5R+9rsp3hhZ+uplVHscNJh8n8VpqscM0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "bfb7a882678e518398ce9a31a881538679f6f092",
+        "rev": "e8057b67ebf307f01bdcc8fba94d94f75039d1f6",
         "type": "github"
       },
       "original": {
@@ -135,34 +120,51 @@
         "nixpkgs": [
           "nixpkgs-unstable"
         ],
-        "nixpkgs-23_05": "nixpkgs-23_05",
-        "nixpkgs-23_11": [
+        "nixpkgs-24_05": [
           "nixpkgs"
         ],
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1706219574,
-        "narHash": "sha256-qO+8UErk+bXCq2ybHU4GzXG4Ejk4Tk0rnnTPNyypW4g=",
+        "lastModified": 1717834029,
+        "narHash": "sha256-woG0M/WIrYDQeYd+aXRvGGMyojLmXND04Pi9XqE7ZxU=",
         "owner": "simple-nixos-mailserver",
         "repo": "nixos-mailserver",
-        "rev": "e47f3719f1db3e0961a4358d4cb234a0acaa7baf",
+        "rev": "62afb98ef6385bcb745d7b189ef4efdce2044030",
         "type": "gitlab"
       },
       "original": {
         "owner": "simple-nixos-mailserver",
-        "ref": "nixos-23.11",
+        "ref": "nixos-24.05",
         "repo": "nixos-mailserver",
         "type": "gitlab"
       }
     },
-    "utils": {
+    "systems": {
       "locked": {
-        "lastModified": 1605370193,
-        "narHash": "sha256-YyMTf3URDL/otKdKgtoMChu4vfVL3vCMkRqpGifhUn0=",
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5021eac20303a61fafe17224c087f5519baed54d",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
         "type": "github"
       },
       "original": {