diff --git a/build.gradle b/build.gradle
index 36fa865..28538ab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.4.2'
+        classpath 'com.android.tools.build:gradle:8.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 070cb70..da1db5f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/switchicon-sample/build.gradle b/switchicon-sample/build.gradle
index 55eb971..9cc0cc6 100644
--- a/switchicon-sample/build.gradle
+++ b/switchicon-sample/build.gradle
@@ -8,6 +8,8 @@ dependencies {
 }
 
 android {
+    namespace 'com.github.zagum.switchicon.sample'
+
     compileSdkVersion rootProject.ext.compileSdkVersion
     buildToolsVersion rootProject.ext.buildToolsVersion
 
@@ -21,11 +23,12 @@ android {
         vectorDrawables.useSupportLibrary = true
     }
     compileOptions {
-        sourceCompatibility 1.8
-        targetCompatibility 1.8
+        sourceCompatibility 17
+        targetCompatibility 17
     }
     buildFeatures {
         viewBinding true
+        buildConfig = true
     }
 }
 repositories {
diff --git a/switchicon-sample/src/main/AndroidManifest.xml b/switchicon-sample/src/main/AndroidManifest.xml
index cd32e1b..7054b53 100644
--- a/switchicon-sample/src/main/AndroidManifest.xml
+++ b/switchicon-sample/src/main/AndroidManifest.xml
@@ -1,6 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    package="com.github.zagum.switchicon.sample">
+    xmlns:tools="http://schemas.android.com/tools">
 
   <application
       android:allowBackup="false"
diff --git a/switchicon/build.gradle b/switchicon/build.gradle
index b95556c..b13c363 100644
--- a/switchicon/build.gradle
+++ b/switchicon/build.gradle
@@ -7,12 +7,21 @@ dependencies {
 }
 
 android {
+    namespace 'com.github.zagum.switchicon'
+
     compileSdkVersion rootProject.ext.compileSdkVersion
     buildToolsVersion rootProject.ext.buildToolsVersion
 
     defaultConfig {
         minSdkVersion rootProject.ext.minSdkVersion
     }
+    compileOptions {
+        sourceCompatibility 17
+        targetCompatibility 17
+    }
+    buildFeatures {
+        buildConfig = true
+    }
 }
 repositories {
     mavenCentral()
diff --git a/switchicon/src/main/AndroidManifest.xml b/switchicon/src/main/AndroidManifest.xml
index b92318d..419acfa 100644
--- a/switchicon/src/main/AndroidManifest.xml
+++ b/switchicon/src/main/AndroidManifest.xml
@@ -1,4 +1,4 @@
-<manifest package="com.github.zagum.switchicon">
+<manifest>
 
   <application/>