diff --git a/packages/palette_generator/example/android/app/build.gradle b/packages/palette_generator/example/android/app/build.gradle
index dbe746d604f..82aebe0c93c 100644
--- a/packages/palette_generator/example/android/app/build.gradle
+++ b/packages/palette_generator/example/android/app/build.gradle
@@ -22,15 +22,12 @@ apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 android {
     compileSdkVersion flutter.compileSdkVersion
 
-    lintOptions {
-        disable 'InvalidPackage'
-    }
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.packages.palettegenerator.imagecolors"
-        minSdkVersion 16
-        targetSdkVersion 27
+        minSdkVersion 19
+        targetSdkVersion 33
         versionCode 1
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -43,6 +40,10 @@ android {
             signingConfig signingConfigs.debug
         }
     }
+    namespace 'io.flutter.packages.palettegenerator.imagecolors'
+    lint {
+        disable 'InvalidPackage'
+    }
 }
 
 flutter {
diff --git a/packages/palette_generator/example/android/app/src/debug/AndroidManifest.xml b/packages/palette_generator/example/android/app/src/debug/AndroidManifest.xml
index 7b31ebf761d..f880684a6a9 100644
--- a/packages/palette_generator/example/android/app/src/debug/AndroidManifest.xml
+++ b/packages/palette_generator/example/android/app/src/debug/AndroidManifest.xml
@@ -1,5 +1,4 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="io.flutter.packages.palettegenerator.imagecolors">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
diff --git a/packages/palette_generator/example/android/app/src/main/AndroidManifest.xml b/packages/palette_generator/example/android/app/src/main/AndroidManifest.xml
index d55ab0ab894..cce53eff225 100644
--- a/packages/palette_generator/example/android/app/src/main/AndroidManifest.xml
+++ b/packages/palette_generator/example/android/app/src/main/AndroidManifest.xml
@@ -1,5 +1,4 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="io.flutter.packages.palettegenerator.imagecolors">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <!-- The INTERNET permission is required for development. Specifically,
          flutter needs it to communicate with the running application
@@ -16,6 +15,7 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density"
             android:hardwareAccelerated="true"
+            android:exported="true"
             android:windowSoftInputMode="adjustResize">
             <!-- This keeps the window background of the activity showing
                  until Flutter renders its first frame. It can be removed if
diff --git a/packages/palette_generator/example/android/app/src/profile/AndroidManifest.xml b/packages/palette_generator/example/android/app/src/profile/AndroidManifest.xml
index 7b31ebf761d..f880684a6a9 100644
--- a/packages/palette_generator/example/android/app/src/profile/AndroidManifest.xml
+++ b/packages/palette_generator/example/android/app/src/profile/AndroidManifest.xml
@@ -1,5 +1,4 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="io.flutter.packages.palettegenerator.imagecolors">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
diff --git a/packages/palette_generator/example/android/build.gradle b/packages/palette_generator/example/android/build.gradle
index 456d020f6e2..0822484928b 100644
--- a/packages/palette_generator/example/android/build.gradle
+++ b/packages/palette_generator/example/android/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:7.4.2'
     }
 }
 
@@ -24,6 +24,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }
diff --git a/packages/palette_generator/example/android/gradle/wrapper/gradle-wrapper.properties b/packages/palette_generator/example/android/gradle/wrapper/gradle-wrapper.properties
index 380a29b4308..7d4cca5688e 100644
--- a/packages/palette_generator/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/packages/palette_generator/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.1-all.zip