diff --git a/app/build.gradle b/app/build.gradle
index 86b0323..03ea57f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,7 +10,7 @@ android {
         applicationId "com.fox2code.mmm"
         minSdk 21
         targetSdk 32
-        versionCode 21
+        versionCode 22
         versionName "3.0.0-dev1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/res/values-vi/arrays.xml b/app/src/main/res/values-vi/arrays.xml
new file mode 100644
index 0000000..1148790
--- /dev/null
+++ b/app/src/main/res/values-vi/arrays.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="theme_values_names">
+        <item>Hệ thống</item>
+        <item>Tối</item>
+        <item>Sáng</item>
+    </string-array>
+</resources>
\ No newline at end of file