diff --git a/ultrasonic/build.gradle b/ultrasonic/build.gradle
index 4701f7df..0ce0a8d3 100644
--- a/ultrasonic/build.gradle
+++ b/ultrasonic/build.gradle
@@ -9,8 +9,8 @@ android {
 
     defaultConfig {
         applicationId "org.moire.ultrasonic"
-        versionCode 86
-        versionName "2.17.2"
+        versionCode 87
+        versionName "2.17.3"
 
         minSdkVersion versions.minSdk
         targetSdkVersion versions.targetSdk
diff --git a/ultrasonic/src/main/res/values-zh-rCN/strings.xml b/ultrasonic/src/main/res/values-zh-rCN/strings.xml
index 36e654d4..9ebc2ebc 100644
--- a/ultrasonic/src/main/res/values-zh-rCN/strings.xml
+++ b/ultrasonic/src/main/res/values-zh-rCN/strings.xml
@@ -47,6 +47,8 @@
     <string name="download.menu_lyrics">歌词</string>
     <string name="download.menu_remove">删除歌曲</string>
     <string name="download.menu_save">保存播放列表</string>
+    <string name="download.menu_screen_off">关闭屏幕常亮</string>
+    <string name="download.menu_screen_on">开启屏幕常亮</string>
     <string name="download.menu_shuffle">随机</string>
     <string name="download.playerstate_downloading">下载中 - %s</string>
     <string name="download.playlist_done">已成功保存播放列表。</string>