diff --git a/candy/lua/marshmallow/format.lua b/candy/lua/marshmallow/format.lua
index af49c65..9e418ef 100644
--- a/candy/lua/marshmallow/format.lua
+++ b/candy/lua/marshmallow/format.lua
@@ -13,7 +13,7 @@ require("lz.n").load({
 				lua = { "stylua" },
 				-- Use a sub-list to run only the first available formatter
 				javascript = { { "prettierd", "prettier" } },
-				nix = { "alejandra" },
+				nix = { "nixfmt" },
 				toml = { "taplo" },
 				sql = { "sql_formatter" },
 				python = { "black" },
diff --git a/flake.lock b/flake.lock
index 813ae6f..8b76657 100644
--- a/flake.lock
+++ b/flake.lock
@@ -57,11 +57,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1741352980,
-        "narHash": "sha256-+u2UunDA4Cl5Fci3m7S643HzKmIDAe+fiXrLqYsR2fs=",
+        "lastModified": 1743550720,
+        "narHash": "sha256-hIshGgKZCgWh6AYJpJmRgFdR3WUbkY04o82X05xqQiY=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "f4330d22f1c5d2ba72d3d22df5597d123fdb60a9",
+        "rev": "c621e8422220273271f52058f618c94e405bb0f5",
         "type": "github"
       },
       "original": {
@@ -78,11 +78,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1741352980,
-        "narHash": "sha256-+u2UunDA4Cl5Fci3m7S643HzKmIDAe+fiXrLqYsR2fs=",
+        "lastModified": 1743550720,
+        "narHash": "sha256-hIshGgKZCgWh6AYJpJmRgFdR3WUbkY04o82X05xqQiY=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "f4330d22f1c5d2ba72d3d22df5597d123fdb60a9",
+        "rev": "c621e8422220273271f52058f618c94e405bb0f5",
         "type": "github"
       },
       "original": {
@@ -199,11 +199,11 @@
     "neovim-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1742654371,
-        "narHash": "sha256-fmOfoKTyGmjouWGFxfJvMdZVX3u2GSZyMlVE9yNhusA=",
+        "lastModified": 1743511785,
+        "narHash": "sha256-oXIT9GcwX/G1L4M3OgYh+R17g8JKdSip4FAYo6idb/c=",
         "owner": "neovim",
         "repo": "neovim",
-        "rev": "f4d9a2983a49c1729f78ffbf6b1e6dcc30215d0d",
+        "rev": "9b239a6a86ed0caaaf7522cfc600da4b35d94d04",
         "type": "github"
       },
       "original": {
@@ -223,11 +223,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1742688454,
-        "narHash": "sha256-gK9nPXWEXVtBWlZCBlwMZynlCDGJ1TtVlRBfC02PNxc=",
+        "lastModified": 1743574307,
+        "narHash": "sha256-bT8RG639HtF8he+5sjmR83oIgimAxFBNCrCuU5V10A8=",
         "owner": "nix-community",
         "repo": "neovim-nightly-overlay",
-        "rev": "098d2af8c606ea8adc1b8b3084f454ca681a7ab3",
+        "rev": "8c23e99e8ebfe6c4edc8ff4ff3f5a5f650c5193a",
         "type": "github"
       },
       "original": {
@@ -254,11 +254,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1742578646,
-        "narHash": "sha256-GiQ40ndXRnmmbDZvuv762vS+gew1uDpFwOfgJ8tLiEs=",
+        "lastModified": 1743472173,
+        "narHash": "sha256-xwNv3FYTC5pl4QVZ79gUxqCEvqKzcKdXycpH5UbYscw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "94c4dbe77c0740ebba36c173672ca15a7926c993",
+        "rev": "88e992074d86ad50249de12b7fb8dbaadf8dc0c5",
         "type": "github"
       },
       "original": {
@@ -270,11 +270,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1742578646,
-        "narHash": "sha256-GiQ40ndXRnmmbDZvuv762vS+gew1uDpFwOfgJ8tLiEs=",
+        "lastModified": 1743568003,
+        "narHash": "sha256-ZID5T65E8ruHqWRcdvZLsczWDOAWIE7om+vQOREwiX0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "94c4dbe77c0740ebba36c173672ca15a7926c993",
+        "rev": "b7ba7f9f45c5cd0d8625e9e217c28f8eb6a19a76",
         "type": "github"
       },
       "original": {
@@ -321,11 +321,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1742696745,
-        "narHash": "sha256-57jlygyNVeCgFiVSvNqdErMlE6NiWaIxQ0XlHoMTEL8=",
+        "lastModified": 1743560563,
+        "narHash": "sha256-l3eGn19iEYPDbVsVsx1AKLw9T6D3dFfjk4RYUxFYktU=",
         "owner": "wires-org",
         "repo": "tolerable-nvim-nix",
-        "rev": "bb3c4788849428cb5ec852a529e6e99b9396727c",
+        "rev": "5e4bceb7c4d81508de01fae2935400da437039c8",
         "type": "github"
       },
       "original": {
@@ -342,11 +342,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1742370146,
-        "narHash": "sha256-XRE8hL4vKIQyVMDXykFh4ceo3KSpuJF3ts8GKwh5bIU=",
+        "lastModified": 1743081648,
+        "narHash": "sha256-WRAylyYptt6OX5eCEBWyTwOEqEtD6zt33rlUkr6u3cE=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "adc195eef5da3606891cedf80c0d9ce2d3190808",
+        "rev": "29a3d7b768c70addce17af0869f6e2bd8f5be4b7",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 5a7d3cb..2f5b315 100644
--- a/flake.nix
+++ b/flake.nix
@@ -52,7 +52,7 @@
               stylua
               prettierd
               black
-              alejandra
+              nixfmt-rfc-style
               taplo
               lua-language-server
               nil