diff --git a/flake.nix b/flake.nix
index 2dac4f91..f7a9e775 100644
--- a/flake.nix
+++ b/flake.nix
@@ -38,9 +38,9 @@
     # There are many ways to reference flake inputs. The most widely used is github:owner/name/reference,
     # which represents the GitHub repository URL + branch/commit-id/tag.
 
-    # Official NixOS package source, using nixos-unstable branch here
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-23.05";
+    # Official NixOS package source, using nixos's stable branch by default
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.05";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
     # for macos
     nixpkgs-darwin.url = "github:nixos/nixpkgs/nixpkgs-23.05-darwin";
@@ -93,7 +93,8 @@
     let
       x64_system = "x86_64-linux";
       x64_specialArgs = {
-        pkgs-stable = import inputs.nixpkgs-stable {
+        # use unstable branch for some packages to get the latest updates
+        pkgs-unstable = import inputs.nixpkgs-unstable {
           system = x64_system; # refer the `system` parameter form outer scope recursively
           # To use chrome, we need to allow the installation of non-free software
           config.allowUnfree = true;
diff --git a/home/linux/hyprland/wayland-apps.nix b/home/linux/hyprland/wayland-apps.nix
index 11e17688..e6612ccb 100644
--- a/home/linux/hyprland/wayland-apps.nix
+++ b/home/linux/hyprland/wayland-apps.nix
@@ -1,5 +1,4 @@
 { pkgs
-, pkgs-stable
 , ...
 }:
 
@@ -11,10 +10,6 @@
     google-chrome = {
       enable = true;
 
-      # chrome wayland support was broken on nixos-unstable branch, so fallback to stable branch for now
-      # https://github.com/swaywm/sway/issues/7562
-      package = pkgs-stable.google-chrome;
-
       commandLineArgs = [
         # make it use GTK_IM_MODULE if it runs with Gtk4, so fcitx5 can work with it.
         # (only supported by chromium/chrome at this time, not electron) 
@@ -30,18 +25,18 @@
     firefox = {
       enable = true;
       enableGnomeExtensions = false;
-      package = pkgs-stable.firefox-wayland; # firefox with wayland support
+      # package = pkgs.firefox-wayland; # firefox with wayland support
     };
 
     vscode = {
       enable = true;
       # use the stable version
-      package = pkgs-stable.vscode.override {
-        commandLineArgs = [
-          # make it use text-input-v1, which works for kwin 5.27 and weston
-          # "--enable-wayland-ime"
-        ];
-      };
+      # package = pkgs.vscode.override {
+      #   commandLineArgs = [
+      #     # make it use text-input-v1, which works for kwin 5.27 and weston
+      #     # "--enable-wayland-ime"
+      #   ];
+      # };
 
       # let vscode sync and update its configuration & extensions across devices, using github account.
       # userSettings = {};