diff --git a/app/build.gradle b/app/build.gradle
index a309bf0..99c9ed7 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -5,12 +5,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion "29.0.0"
+    compileSdkVersion 33
+    buildToolsVersion "30.0.0"
     defaultConfig {
         applicationId "xyz.wsxyeah.continuousroundrect"
         minSdkVersion 17
-        targetSdkVersion 29
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 530b67c..8eb401d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          package="xyz.wsxyeah.continuousroundrect">
+        package="xyz.wsxyeah.continuousroundrect">
 
     <application
             android:allowBackup="true"
@@ -11,12 +11,13 @@
             android:theme="@style/AppTheme">
         <activity
                 android:name=".MainActivity"
+                android:exported="true"
                 android:label="@string/app_name"
                 android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
+                <action android:name="android.intent.action.MAIN" />
 
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>
diff --git a/build.gradle b/build.gradle
index c2030c9..a3aa2f0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,14 +1,14 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.41'
+    ext.kotlin_version = '1.7.21'
     repositories {
         google()
-        jcenter()
-        
+        mavenCentral()
+
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+        classpath 'com.android.tools.build:gradle:7.4.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -18,8 +18,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
-        
+        mavenCentral()
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index b6055d3..cb3c33f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Jul 06 14:35:41 CST 2019
+#Thu Jan 26 21:30:19 ICT 2023
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
+zipStoreBase=GRADLE_USER_HOME