diff --git a/flake.lock b/flake.lock
index 7d949aa..8e59efd 100644
--- a/flake.lock
+++ b/flake.lock
@@ -62,11 +62,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "lastModified": 1747046372,
+        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
         "type": "github"
       },
       "original": {
@@ -75,6 +75,54 @@
         "type": "github"
       }
     },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": [
+          "simple-nixos-mailserver",
+          "flake-compat"
+        ],
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "simple-nixos-mailserver",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1742649964,
+        "narHash": "sha256-DwOTp7nvfi8mRfuL1escHDXabVXFGT1VlPD1JHrtrco=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "dcf5072734cb576d2b0c59b2ac44f5050b5eac82",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "simple-nixos-mailserver",
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -103,11 +151,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1747556831,
-        "narHash": "sha256-Qb84nbYFFk0DzFeqVoHltS2RodAYY5/HZQKE8WnBDsc=",
+        "lastModified": 1749154018,
+        "narHash": "sha256-gjN3j7joRvT3a8Zgcylnd4NFsnXeDBumqiu4HmY1RIg=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "d0bbd221482c2713cccb80220f3c9d16a6e20a33",
+        "rev": "7aae0ee71a17b19708b93b3ed448a1a0952bf111",
         "type": "github"
       },
       "original": {
@@ -119,11 +167,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1747723695,
-        "narHash": "sha256-lSXzv33yv1O9r9Ai1MtYFDX3OKhWsZMn/5FFb4Rni/k=",
+        "lastModified": 1749195551,
+        "narHash": "sha256-W5GKQHgunda/OP9sbKENBZhMBDNu2QahoIPwnsF6CeM=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "6ac6ec6fcb410e15a60ef5ec94b8a2b35b5dd282",
+        "rev": "4602f7e1d3f197b3cb540d5accf5669121629628",
         "type": "github"
       },
       "original": {
@@ -149,38 +197,7 @@
         "type": "github"
       }
     },
-    "nixpkgs-24_05": {
-      "locked": {
-        "lastModified": 1717144377,
-        "narHash": "sha256-F/TKWETwB5RaR8owkPPi+SPJh83AQsm6KrQAlJ8v/uA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "805a384895c696f802a9bf5bf4720f37385df547",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "ref": "nixos-24.05",
-        "type": "indirect"
-      }
-    },
-    "nixpkgsUnstable": {
-      "locked": {
-        "lastModified": 1747542820,
-        "narHash": "sha256-GaOZntlJ6gPPbbkTLjbd8BMWaDYafhuuYRNrxCGnPJw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "292fa7d4f6519c074f0a50394dbbe69859bb6043",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
+    "nixpkgs-25_05": {
       "locked": {
         "lastModified": 1747610100,
         "narHash": "sha256-rpR5ZPMkWzcnCcYYo3lScqfuzEw5Uyfh+R0EKZfroAc=",
@@ -196,19 +213,52 @@
         "type": "github"
       }
     },
-    "nixpkgs_3": {
+    "nixpkgsUnstable": {
       "locked": {
-        "lastModified": 1717602782,
-        "narHash": "sha256-pL9jeus5QpX5R+9rsp3hhZ+uplVHscNJh8n8VpqscM0=",
+        "lastModified": 1749285348,
+        "narHash": "sha256-frdhQvPbmDYaScPFiCnfdh3B/Vh81Uuoo0w5TkWmmjU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e8057b67ebf307f01bdcc8fba94d94f75039d1f6",
+        "rev": "3e3afe5174c561dee0df6f2c2b2236990146329f",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
+        "owner": "NixOS",
         "ref": "nixos-unstable",
-        "type": "indirect"
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1749494155,
+        "narHash": "sha256-FG4DEYBpROupu758beabUk9lhrblSf5hnv84v1TLqMc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "88331c17ba434359491e8d5889cce872464052c2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1747179050,
+        "narHash": "sha256-qhFMmDkeJX9KJwr5H32f1r7Prs7XbQWtO0h3V0a0rFY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "adaa24fbf46737f3f1b5497bf64bae750f82942e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "root": {
@@ -225,21 +275,21 @@
       "inputs": {
         "blobs": "blobs",
         "flake-compat": "flake-compat",
+        "git-hooks": "git-hooks",
         "nixpkgs": "nixpkgs_3",
-        "nixpkgs-24_05": "nixpkgs-24_05",
-        "utils": "utils"
+        "nixpkgs-25_05": "nixpkgs-25_05"
       },
       "locked": {
-        "lastModified": 1734885828,
-        "narHash": "sha256-G0fB1YBlkalu8lLGRB07K8CpUWNVd+unfrjNomSL7SM=",
+        "lastModified": 1747965231,
+        "narHash": "sha256-BW3ktviEhfCN/z3+kEyzpDKAI8qFTwO7+S0NVA0C90o=",
         "owner": "simple-nixos-mailserver",
         "repo": "nixos-mailserver",
-        "rev": "636b82f4175e3f6b1e80d2189bb0469e2ae01a55",
+        "rev": "53007af63fade28853408370c4c600a63dd97f41",
         "type": "gitlab"
       },
       "original": {
         "owner": "simple-nixos-mailserver",
-        "ref": "nixos-24.05",
+        "ref": "nixos-25.05",
         "repo": "nixos-mailserver",
         "type": "gitlab"
       }
@@ -258,39 +308,6 @@
         "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 2e4ffb0..8dadb7e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,7 +8,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     agenix.url = "github:ryantm/agenix";
-    simple-nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-24.05";
+    simple-nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-25.05";
   };
 
   outputs =