diff --git a/flake.lock b/flake.lock
index a293527c..9baa9dc5 100644
--- a/flake.lock
+++ b/flake.lock
@@ -178,11 +178,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1731676054,
-        "narHash": "sha256-OZiZ3m8SCMfh3B6bfGC/Bm4x3qc1m2SVEAlkV6iY7Yg=",
+        "lastModified": 1732014248,
+        "narHash": "sha256-y/MEyuJ5oBWrWAic/14LaIr/u5E0wRVzyYsouYY3W6w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5e4fbfb6b3de1aa2872b76d49fafc942626e2add",
+        "rev": "23e89b7da85c3640bbc2173fe04f4bd114342367",
         "type": "github"
       },
       "original": {
diff --git a/modules/desktop.nix b/modules/desktop.nix
index 9bf5a20f..1ff6737f 100644
--- a/modules/desktop.nix
+++ b/modules/desktop.nix
@@ -1,5 +1,4 @@
 {
-  nix-config,
   pkgs,
   config,
   lib,
@@ -50,7 +49,7 @@ in
       fcitx5 = {
         waylandFrontend = true;
 
-        addons = with nix-config.packages.${pkgs.system}; [
+        addons = with pkgs; [
           fcitx5-mozc
         ];
       };
diff --git a/packages/fcitx5-mozc.nix b/packages/fcitx5-mozc.nix
deleted file mode 100644
index 0e7d0c86..00000000
--- a/packages/fcitx5-mozc.nix
+++ /dev/null
@@ -1,148 +0,0 @@
-{
-  bazel_6,
-  buildBazelPackage,
-  fcitx5,
-  fetchFromGitHub,
-  gettext,
-  lib,
-  mozc,
-  nixosTests,
-  pkg-config,
-  python3,
-  stdenv,
-  unzip,
-}:
-
-buildBazelPackage {
-  pname = "fcitx5-mozc";
-  version = "2.30.5544.102";
-
-  src = fetchFromGitHub {
-    owner = "fcitx";
-    repo = "mozc";
-    fetchSubmodules = true;
-    rev = "57e67f2a25e4c0861e0e422da0c7d4c232d89fcc";
-    hash = "sha256-1EZjEbMl+LRipH5gEgFpaKP8uEKPfupHmiiTNJc/T1k=";
-  };
-
-  nativeBuildInputs = [
-    gettext
-    pkg-config
-    python3
-    unzip
-  ];
-
-  buildInputs = [
-    mozc
-    fcitx5
-  ];
-
-  postPatch = ''
-    sed -i -e 's|^\(LINUX_MOZC_SERVER_DIR = \).\+|\1"${mozc}/lib/mozc"|' src/config.bzl
-  '';
-
-  bazel = bazel_6;
-  removeRulesCC = false;
-  dontAddBazelOpts = true;
-
-  bazelFlags = [
-    "--config"
-    "oss_linux"
-    "--compilation_mode"
-    "opt"
-  ];
-
-  bazelTargets = [
-    "unix/fcitx5:fcitx5-mozc.so"
-    "unix/icons"
-  ];
-
-  fetchAttrs = {
-    preInstall = ''
-      rm -rf $bazelOut/external/fcitx5
-    '';
-
-    sha256 = "sha256-rrRp/v1pty7Py80/6I8rVVQvkeY72W+nlixUeYkjp+o=";
-  };
-
-  preConfigure = ''
-    cd src
-  '';
-
-  buildAttrs = {
-    installPhase = ''
-      runHook preInstall
-
-      install -Dm444 ../LICENSE $out/share/licenses/fcitx5-mozc/LICENSE
-      install -Dm444 data/installer/credits_en.html $out/share/licenses/fcitx5-mozc/Submodules
-
-      install -Dm555 bazel-bin/unix/fcitx5/fcitx5-mozc.so $out/lib/fcitx5/fcitx5-mozc.so
-      install -Dm444 unix/fcitx5/mozc-addon.conf $out/share/fcitx5/addon/mozc.conf
-      install -Dm444 unix/fcitx5/mozc.conf $out/share/fcitx5/inputmethod/mozc.conf
-
-      for pofile in unix/fcitx5/po/*.po; do
-        filename=$(basename $pofile)
-        lang=''${filename/.po/}
-        mofile=''${pofile/.po/.mo}
-        msgfmt $pofile -o $mofile
-        install -Dm444 $mofile $out/share/locale/$lang/LC_MESSAGES/fcitx5-mozc.mo
-      done
-
-      msgfmt --xml -d unix/fcitx5/po/ --template unix/fcitx5/org.fcitx.Fcitx5.Addon.Mozc.metainfo.xml.in -o unix/fcitx5/org.fcitx.Fcitx5.Addon.Mozc.metainfo.xml
-      install -Dm444 unix/fcitx5/org.fcitx.Fcitx5.Addon.Mozc.metainfo.xml $out/share/metainfo/org.fcitx.Fcitx5.Addon.Mozc.metainfo.xml
-
-      cd bazel-bin/unix
-
-      unzip -o icons.zip
-
-      # These are relative symlinks, they will always resolve to files within $out
-
-      install -Dm444 mozc.png $out/share/icons/hicolor/128x128/apps/org.fcitx.Fcitx5.fcitx_mozc.png
-      ln -s org.fcitx.Fcitx5.fcitx_mozc.png $out/share/icons/hicolor/128x128/apps/fcitx_mozc.png
-
-      for svg in \
-        alpha_full.svg \
-        alpha_half.svg \
-        direct.svg \
-        hiragana.svg \
-        katakana_full.svg \
-        katakana_half.svg \
-        outlined/dictionary.svg \
-        outlined/properties.svg \
-        outlined/tool.svg
-      do
-        name=$(basename -- $svg)
-        path=$out/share/icons/hicolor/scalable/apps
-        prefix=org.fcitx.Fcitx5.fcitx_mozc
-
-        install -Dm444 $svg $path/$prefix_$name
-        ln -s $prefix_$name $path/fcitx_mozc_$name
-      done
-
-      runHook postInstall
-    '';
-  };
-
-  passthru.tests = lib.optionalAttrs stdenv.hostPlatform.isLinux {
-    inherit (nixosTests) fcitx5;
-  };
-
-  meta = with lib; {
-    description = "Mozc - a Japanese Input Method Editor designed for multi-platform";
-    homepage = "https://github.com/fcitx/mozc";
-    license = with licenses; [
-      asl20 # abseil-cpp
-      bsd3 # mozc, breakpad, gtest, gyp, japanese-usage-dictionary, protobuf
-      mit # wil
-      naist-2003 # IPAdic
-      publicDomain # src/data/test/stress_test, Okinawa dictionary
-      unicode-30 # src/data/unicode, breakpad
-    ];
-    maintainers = with maintainers; [
-      berberman
-      govanify
-      musjj
-    ];
-    platforms = platforms.linux;
-  };
-}