diff --git a/flake.lock b/flake.lock
index 4b6f929..ca27f9e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -12,11 +12,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1723293904,
-        "narHash": "sha256-b+uqzj+Wa6xgMS9aNbX4I+sXeb5biPDi39VgvSFqFvU=",
+        "lastModified": 1736955230,
+        "narHash": "sha256-uenf8fv2eG5bKM8C/UvFaiJMZ4IpUFaQxk9OH5t/1gA=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "f6291c5935fdc4e0bef208cfc0dcab7e3f7a1c41",
+        "rev": "e600439ec4c273cf11e06fe4d9d906fb98fa097c",
         "type": "github"
       },
       "original": {
@@ -136,11 +136,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1736441705,
-        "narHash": "sha256-OL7leZ6KBhcDF3nEKe4aZVfIm6xQpb1Kb+mxySIP93o=",
+        "lastModified": 1736977469,
+        "narHash": "sha256-iE8tO5ik9EqLA7r/+6vRAV2d0b3HpPZjF4IUPRhw964=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "8870dcaff63dfc6647fb10648b827e9d40b0a337",
+        "rev": "91c1069cbab1fe3fda523bba05627200dca3f54d",
         "type": "github"
       },
       "original": {
@@ -152,11 +152,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1736684107,
-        "narHash": "sha256-vH5mXxEvZeoGNkqKoCluhTGfoeXCZ1seYhC2pbMN0sg=",
+        "lastModified": 1736867362,
+        "narHash": "sha256-i/UJ5I7HoqmFMwZEH6vAvBxOrjjOJNU739lnZnhUln8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "635e887b48521e912a516625eee7df6cf0eba9c1",
+        "rev": "9c6b49aeac36e2ed73a8c472f1546f6d9cf1addc",
         "type": "github"
       },
       "original": {
@@ -166,28 +166,28 @@
         "type": "github"
       }
     },
-    "nixpkgs-24_05": {
+    "nixpkgs-24_11": {
       "locked": {
-        "lastModified": 1717144377,
-        "narHash": "sha256-F/TKWETwB5RaR8owkPPi+SPJh83AQsm6KrQAlJ8v/uA=",
+        "lastModified": 1734083684,
+        "narHash": "sha256-5fNndbndxSx5d+C/D0p/VF32xDiJCJzyOqorOYW4JEo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "805a384895c696f802a9bf5bf4720f37385df547",
+        "rev": "314e12ba369ccdb9b352a4db26ff419f7c49fa84",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-24.05",
+        "ref": "nixos-24.11",
         "type": "indirect"
       }
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1736701207,
-        "narHash": "sha256-jG/+MvjVY7SlTakzZ2fJ5dC3V1PrKKrUEOEE30jrOKA=",
+        "lastModified": 1736798957,
+        "narHash": "sha256-qwpCtZhSsSNQtK4xYGzMiyEDhkNzOCz/Vfu4oL2ETsQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ed4a395ea001367c1f13d34b1e01aa10290f67d6",
+        "rev": "9abb87b552b7f55ac8916b6fc9e5cb486656a2f3",
         "type": "github"
       },
       "original": {
@@ -234,20 +234,19 @@
         "nixpkgs": [
           "nixpkgs"
         ],
-        "nixpkgs-24_05": "nixpkgs-24_05",
-        "utils": "utils"
+        "nixpkgs-24_11": "nixpkgs-24_11"
       },
       "locked": {
-        "lastModified": 1734885828,
-        "narHash": "sha256-G0fB1YBlkalu8lLGRB07K8CpUWNVd+unfrjNomSL7SM=",
+        "lastModified": 1734884447,
+        "narHash": "sha256-HA9fAmGNGf0cOYrhgoa+B6BxNVqGAYXfLyx8zIS0ZBY=",
         "owner": "simple-nixos-mailserver",
         "repo": "nixos-mailserver",
-        "rev": "636b82f4175e3f6b1e80d2189bb0469e2ae01a55",
+        "rev": "63209b1def2c9fc891ad271f474a3464a5833294",
         "type": "gitlab"
       },
       "original": {
         "owner": "simple-nixos-mailserver",
-        "ref": "nixos-24.05",
+        "ref": "nixos-24.11",
         "repo": "nixos-mailserver",
         "type": "gitlab"
       }
@@ -286,39 +285,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "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_2"
-      },
-      "locked": {
-        "lastModified": 1709126324,
-        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 13920f5..41efd96 100644
--- a/flake.nix
+++ b/flake.nix
@@ -40,8 +40,7 @@
       inputs.nixpkgs.follows = "nixpkgs"; # use the same nixpkgs as the system
     };
     simple-nixos-mailserver = {
-      # TODO: upgrade to 24.11
-      url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-24.05";
+      url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-24.11";
       inputs.nixpkgs.follows = "nixpkgs"; # use the same nixpkgs as the system
     };
     sortseer = {