diff --git a/android/build.gradle b/android/build.gradle
index 2feed78f..9e28dcf5 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -8,7 +8,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:7.4.0'
     }
 }
 
@@ -23,10 +23,11 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 30
+    namespace 'flutter.plugins.contactsservice.contactsservice'
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 30
+        minSdkVersion 21
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"