diff --git a/.github/ISSUE_TEMPLATE/kachick.md b/.github/ISSUE_TEMPLATE/kachick.md
index 2d4a285..bcaf2ea 100644
--- a/.github/ISSUE_TEMPLATE/kachick.md
+++ b/.github/ISSUE_TEMPLATE/kachick.md
@@ -3,7 +3,6 @@ name: Creating new issue by kachick
 about: Specialized to @kachick
 title: '日本語 / English'
 labels: blog, tips, 'help wanted', question
-
 ---
 
 ## TL;DR
diff --git a/dprint.json b/dprint.json
index f632805..e4fc1d2 100644
--- a/dprint.json
+++ b/dprint.json
@@ -3,8 +3,8 @@
   "markdown": {},
   "yaml": { "quotes": "preferSingle" },
   "plugins": [
-    "https://plugins.dprint.dev/json-0.19.3.wasm",
-    "https://plugins.dprint.dev/markdown-0.17.1.wasm",
-    "https://plugins.dprint.dev/g-plane/pretty_yaml-v0.2.0.wasm"
+    "https://plugins.dprint.dev/json-0.19.4.wasm",
+    "https://plugins.dprint.dev/markdown-0.17.8.wasm",
+    "https://plugins.dprint.dev/g-plane/pretty_yaml-v0.5.0.wasm"
   ]
 }
diff --git a/flake.lock b/flake.lock
index 656ee3b..4e3c2b6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,16 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1720110830,
-        "narHash": "sha256-E5dN9GDV4LwMEduhBLSkyEz51zM17XkWZ3/9luvNOPs=",
+        "lastModified": 1733550349,
+        "narHash": "sha256-NcGumB4Lr6KSDq+nIqXtNA8QwAQKDSZT7N9OTGWbTrs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c0d0be00d4ecc4b51d2d6948e37466194c1e6c51",
+        "rev": "e2605d0744c2417b09f8bf850dfca42fcf537d34",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-24.05",
+        "ref": "nixos-24.11",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index fcb4405..3f0cd41 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,28 +1,17 @@
 {
   inputs = {
-    # Candidate channels
-    #   - https://github.com/kachick/anylang-template/issues/17
-    #   - https://discourse.nixos.org/t/differences-between-nix-channels/13998
-    # How to update the revision
-    #   - `nix flake update --commit-lock-file` # https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-flake-update.html
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
   };
 
   outputs =
     { self, nixpkgs }:
     let
-      # Candidates: https://github.com/NixOS/nixpkgs/blob/release-23.11/lib/systems/flake-systems.nix
       forAllSystems = nixpkgs.lib.genAttrs [
         "x86_64-linux"
         "aarch64-linux"
       ];
     in
     {
-      # Q. Why nixfmt? Not nixpkgs-fmt and alejandra?
-      # A. nixfmt will be official
-      # - https://github.com/NixOS/nixfmt/issues/153
-      # - https://github.com/NixOS/nixfmt/issues/129
-      # - https://github.com/NixOS/rfcs/pull/166
       formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.nixfmt-rfc-style);
       devShells = forAllSystems (
         system:
@@ -34,8 +23,6 @@
             with pkgs;
             mkShell {
               buildInputs = [
-                # https://github.com/NixOS/nix/issues/730#issuecomment-162323824
-                # https://github.com/kachick/dotfiles/pull/228
                 bashInteractive
                 findutils # xargs
                 nixfmt-rfc-style