diff --git a/app/build.gradle b/app/build.gradle
index 5190f59..ff77c52 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,8 +6,8 @@ android {
         applicationId "com.zyc.zcontrol"
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 49
-        versionName "v1.8.0"
+        versionCode 50
+        versionName "v1.9.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
diff --git a/app/release/app-release.apk b/app/release/app-release.apk
index 142cdf9..d20a6e1 100644
Binary files a/app/release/app-release.apk and b/app/release/app-release.apk differ
diff --git a/app/release/output-metadata.json b/app/release/output-metadata.json
index 88e3f8e..a35d4d7 100644
--- a/app/release/output-metadata.json
+++ b/app/release/output-metadata.json
@@ -10,8 +10,8 @@
     {
       "type": "SINGLE",
       "filters": [],
-      "versionCode": 49,
-      "versionName": "v1.8.0",
+      "versionCode": 50,
+      "versionName": "v1.9.0",
       "outputFile": "app-release.apk"
     }
   ]
diff --git a/build.gradle b/build.gradle
index 0ae0de5..2426268 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:4.1.1'
         
 
         // NOTE: Do not place your application dependencies here; they belong