diff --git a/default.nix b/default.nix
index 2e8e7ee..1532b18 100644
--- a/default.nix
+++ b/default.nix
@@ -16,7 +16,6 @@
 
   zju-connect = pkgs.callPackage ./pkgs/zju-connect { };
   wpsoffice-cn = pkgs.libsForQt5.callPackage ./pkgs/wpsoffice-cn { };
-  brave-browser-gtk4-12-5 = unstable.callPackage ./pkgs/brave-browser { };
   # some-qt5-package = pkgs.libsForQt5.callPackage ./pkgs/some-qt5-package { };
   # ...
 }
diff --git a/pkgs/brave-browser/default.nix b/pkgs/brave-browser/default.nix
deleted file mode 100644
index bb59834..0000000
--- a/pkgs/brave-browser/default.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-# Expression generated by update.sh; do not edit it by hand!
-{ stdenv, callPackage, ... }@args:
-
-callPackage ./make-brave.nix (removeAttrs args [ "callPackage" ])
-  (
-    if stdenv.isAarch64 then
-      {
-        pname = "brave";
-        version = "1.65.122";
-        url = "https://github.com/brave/brave-browser/releases/download/v1.65.126/brave-browser_1.65.126_arm64.deb";
-        hash = "sha256-v2PbixM9g+AhvR6tJ9QDbaXF7ERlBBrNMIsLofFbAfU=";
-        platform = "aarch64-linux";
-      }
-    else if stdenv.isx86_64 then
-      {
-        pname = "brave";
-        version = "1.65.122";
-        url = "https://github.com/brave/brave-browser/releases/download/v1.65.126/brave-browser_1.65.126_amd64.deb";
-        hash = "sha256-DbdwCu9LwCeoH46egVY4AsOxcJDWilD2MdpyNdyJizw=";
-        platform = "x86_64-linux";
-      }
-    else
-      throw "Unsupported platform."
-  )
diff --git a/pkgs/brave-browser/make-brave.nix b/pkgs/brave-browser/make-brave.nix
deleted file mode 100644
index 3aed8ba..0000000
--- a/pkgs/brave-browser/make-brave.nix
+++ /dev/null
@@ -1,244 +0,0 @@
-{ lib, stdenv, fetchurl, wrapGAppsHook3, makeWrapper
-, alsa-lib
-, at-spi2-atk
-, at-spi2-core
-, atk
-, cairo
-, cups
-, dbus
-, dpkg
-, expat
-, fontconfig
-, freetype
-, gdk-pixbuf
-, glib
-, gnome
-, gsettings-desktop-schemas
-, gtk3
-, gtk4
-, libX11
-, libXScrnSaver
-, libXcomposite
-, libXcursor
-, libXdamage
-, libXext
-, libXfixes
-, libXi
-, libXrandr
-, libXrender
-, libXtst
-, libdrm
-, libkrb5
-, libuuid
-, libxkbcommon
-, libxshmfence
-, mesa
-, nspr
-, nss
-, pango
-, pipewire
-, snappy
-, udev
-, wayland
-, xdg-utils
-, coreutils
-, xorg
-, zlib
-, buildPackages
-, compileSchemas ? stdenv.hostPlatform.emulatorAvailable buildPackages
-
-# command line arguments which are always set e.g "--disable-gpu"
-, commandLineArgs ? ""
-
-# Necessary for USB audio devices.
-, pulseSupport ? stdenv.isLinux
-, libpulseaudio
-
-# For GPU acceleration support on Wayland (without the lib it doesn't seem to work)
-, libGL
-
-# For video acceleration via VA-API (--enable-features=VaapiVideoDecoder,VaapiVideoEncoder)
-, libvaSupport ? stdenv.isLinux
-, libva
-, enableVideoAcceleration ? libvaSupport
-
-# For Vulkan support (--enable-features=Vulkan); disabled by default as it seems to break VA-API
-, vulkanSupport ? false
-, addOpenGLRunpath
-, enableVulkan ? vulkanSupport
-}:
-
-{ pname
-, version
-, hash
-, url
-, platform
-}:
-
-let
-  inherit (lib) optional optionals makeLibraryPath makeSearchPathOutput makeBinPath
-    optionalString strings escapeShellArg;
-
-  gtk-4-12-5 = gtk4.overrideAttrs (final: prev : rec {
-    version = "4.12.5";
-    src = fetchurl {
-      url = "mirror://gnome/sources/gtk/${lib.versions.majorMinor final.version}/gtk-${final.version}.tar.xz";
-      hash = "sha256-KLNW1ZDuaO9ibi75ggst0hRBSEqaBCpaPwxA6d/E9Pg=";
-    };
-    postPatch = ''
-      # this conditional gates the installation of share/gsettings-schemas/.../glib-2.0/schemas/gschemas.compiled.
-      substituteInPlace meson.build \
-        --replace 'if not meson.is_cross_build()' 'if ${lib.boolToString compileSchemas}'
-      files=(
-        build-aux/meson/gen-demo-header.py
-        build-aux/meson/gen-visibility-macros.py
-        demos/gtk-demo/geninclude.py
-        gdk/broadway/gen-c-array.py
-        gdk/gen-gdk-gresources-xml.py
-        gtk/gen-gtk-gresources-xml.py
-        gtk/gentypefuncs.py
-      )
-      chmod +x ''${files[@]}
-      patchShebangs ''${files[@]}
-    '';
-  });
-
-  deps = [
-    alsa-lib at-spi2-atk at-spi2-core atk cairo cups dbus expat
-    fontconfig freetype gdk-pixbuf glib gtk3 gtk-4-12-5 libdrm libX11 libGL
-    libxkbcommon libXScrnSaver libXcomposite libXcursor libXdamage
-    libXext libXfixes libXi libXrandr libXrender libxshmfence
-    libXtst libuuid mesa nspr nss pango pipewire udev wayland
-    xorg.libxcb zlib snappy libkrb5
-  ]
-    ++ optional pulseSupport libpulseaudio
-    ++ optional libvaSupport libva;
-
-  rpath = makeLibraryPath deps + ":" + makeSearchPathOutput "lib" "lib64" deps;
-  binpath = makeBinPath deps;
-
-  enableFeatures = optionals enableVideoAcceleration [ "VaapiVideoDecoder" "VaapiVideoEncoder" ]
-    ++ optional enableVulkan "Vulkan";
-
-  disableFeatures = [ "OutdatedBuildDetector" ] # disable automatic updates
-    # The feature disable is needed for VAAPI to work correctly: https://github.com/brave/brave-browser/issues/20935
-    ++ optionals enableVideoAcceleration  [ "UseChromeOSDirectVideoDecoder" ];
-in
-stdenv.mkDerivation {
-  inherit pname version;
-
-  src = fetchurl {
-    inherit url hash;
-  };
-
-  dontConfigure = true;
-  dontBuild = true;
-  dontPatchELF = true;
-  doInstallCheck = true;
-
-  nativeBuildInputs = [
-    dpkg
-    (wrapGAppsHook3.override { inherit makeWrapper; })
-  ];
-
-  buildInputs = [
-    # needed for GSETTINGS_SCHEMAS_PATH
-    glib gsettings-desktop-schemas gtk3 gtk-4-12-5
-
-    # needed for XDG_ICON_DIRS
-    gnome.adwaita-icon-theme
-  ];
-
-  unpackPhase = "dpkg-deb --fsys-tarfile $src | tar -x --no-same-permissions --no-same-owner";
-
-  installPhase = ''
-      runHook preInstall
-
-      mkdir -p $out $out/bin
-
-      cp -R usr/share $out
-      cp -R opt/ $out/opt
-
-      export BINARYWRAPPER=$out/opt/brave.com/brave/brave-browser
-
-      # Fix path to bash in $BINARYWRAPPER
-      substituteInPlace $BINARYWRAPPER \
-          --replace /bin/bash ${stdenv.shell}
-
-      ln -sf $BINARYWRAPPER $out/bin/brave
-
-      for exe in $out/opt/brave.com/brave/{brave,chrome_crashpad_handler}; do
-          patchelf \
-              --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
-              --set-rpath "${rpath}" $exe
-      done
-
-      # Fix paths
-      substituteInPlace $out/share/applications/brave-browser.desktop \
-          --replace /usr/bin/brave-browser-stable $out/bin/brave
-      substituteInPlace $out/share/gnome-control-center/default-apps/brave-browser.xml \
-          --replace /opt/brave.com $out/opt/brave.com
-      substituteInPlace $out/share/menu/brave-browser.menu \
-          --replace /opt/brave.com $out/opt/brave.com
-      substituteInPlace $out/opt/brave.com/brave/default-app-block \
-          --replace /opt/brave.com $out/opt/brave.com
-
-      # Correct icons location
-      icon_sizes=("16" "24" "32" "48" "64" "128" "256")
-
-      for icon in ''${icon_sizes[*]}
-      do
-          mkdir -p $out/share/icons/hicolor/$icon\x$icon/apps
-          ln -s $out/opt/brave.com/brave/product_logo_$icon.png $out/share/icons/hicolor/$icon\x$icon/apps/brave-browser.png
-      done
-
-      # Replace xdg-settings and xdg-mime
-      ln -sf ${xdg-utils}/bin/xdg-settings $out/opt/brave.com/brave/xdg-settings
-      ln -sf ${xdg-utils}/bin/xdg-mime $out/opt/brave.com/brave/xdg-mime
-
-      runHook postInstall
-  '';
-
-  preFixup = ''
-    # Add command line args to wrapGApp.
-    gappsWrapperArgs+=(
-      --prefix LD_LIBRARY_PATH : ${rpath}
-      --prefix PATH : ${binpath}
-      --suffix PATH : ${lib.makeBinPath [ xdg-utils coreutils ]}
-      ${optionalString (enableFeatures != []) ''
-      --add-flags "--enable-features=${strings.concatStringsSep "," enableFeatures}\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+,WaylandWindowDecorations}}"
-      ''}
-      ${optionalString (disableFeatures != []) ''
-      --add-flags "--disable-features=${strings.concatStringsSep "," disableFeatures}"
-      ''}
-      --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto}}"
-      ${optionalString vulkanSupport ''
-      --prefix XDG_DATA_DIRS  : "${addOpenGLRunpath.driverLink}/share"
-      ''}
-      --add-flags ${escapeShellArg commandLineArgs}
-    )
-  '';
-
-  installCheckPhase = ''
-    # Bypass upstream wrapper which suppresses errors
-    $out/opt/brave.com/brave/brave --version
-  '';
-
-  passthru.updateScript = ./update.sh;
-
-  meta = {
-    homepage = "https://brave.com/";
-    description = "Privacy-oriented browser for Desktop and Laptop computers";
-    changelog = "https://github.com/brave/brave-browser/blob/master/CHANGELOG_DESKTOP.md#" + lib.replaceStrings [ "." ] [ "" ] version;
-    longDescription = ''
-      Brave browser blocks the ads and trackers that slow you down,
-      chew up your bandwidth, and invade your privacy. Brave lets you
-      contribute to your favorite creators automatically.
-    '';
-    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
-    license = lib.licenses.mpl20;
-    maintainers = with lib.maintainers; [ uskudnik rht jefflabonte nasirhm buckley310 ];
-    platforms = [ "aarch64-linux" "x86_64-linux" ];
-    mainProgram = "brave";
-  };
-}