diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d07242..2bb2f37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## v0.3.1
+
+### Changed
+
+Set wallpaper for main monitor -> Set wallpaper for all monitors.
+
+### Fixed
+
+- Fix bug for `Move to Next Monitor`
+
 ## v0.3.0
 
 ### Added
diff --git a/bing_daily_wallpaper.lua b/bing_daily_wallpaper.lua
index 13ecf63..26bb3bc 100644
--- a/bing_daily_wallpaper.lua
+++ b/bing_daily_wallpaper.lua
@@ -13,7 +13,13 @@ local function curl_callback(exitCode, stdOut, stdErr)
         _M.last_pic = hs.http.urlParts(_M.full_url).lastPathComponent
 
         local localpath = os.getenv("HOME") .. "/.Trash/" .. hs.http.urlParts(_M.full_url).lastPathComponent
-        hs.screen.mainScreen():desktopImageURL("file://" .. localpath)
+
+        -- 为每个显示器都设置壁纸(注意不是macOS新建的其他桌面, 而是扩展显示器)
+        local screens = hs.screen.allScreens()
+        for _, screen in ipairs(screens) do
+            print("[INFO] set wallpaper for ", screen)
+            screen:desktopImageURL("file://" .. localpath)
+        end
     else
         print(stdOut, stdErr)
     end
diff --git a/shortcuts_config.lua b/shortcuts_config.lua
index 25391a3..abe2a5f 100644
--- a/shortcuts_config.lua
+++ b/shortcuts_config.lua
@@ -117,7 +117,7 @@ _M.windows = {
     },
     to_next_screen = {
         prefix = {"Ctrl", "Option"},
-        key = "space",
+        key = "space", -- 扩展显示器比较少的情况只用这个就可以.
         message = "Move to Next Monitor"
     },
     -- **********************************