diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index e7a1be7..46b6df2 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -7,7 +7,7 @@
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="11 (2)" />
+        <option name="gradleJvm" value="Android Studio default JDK" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
@@ -15,7 +15,6 @@
             <option value="$PROJECT_DIR$/treedatastructure" />
           </set>
         </option>
-        <option name="resolveModulePerSourceSet" value="false" />
       </GradleProjectSettings>
     </option>
   </component>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index ef61796..6199cc2 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index c647d8c..cb863cc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -2,12 +2,12 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
 android {
-    compileSdkVersion 31
-    buildToolsVersion "31.0.0"
+    compileSdkVersion 33
+    buildToolsVersion "33.0.0"
     defaultConfig {
         applicationId "com.github.adriankuta.treedatastructure"
         minSdkVersion 15
-        targetSdkVersion 31
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -18,16 +18,17 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    namespace 'com.github.adriankuta.treedatastructure'
 }
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.3.1'
-    implementation 'androidx.core:core-ktx:1.6.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
-    implementation 'com.github.adriankuta:tree-structure:1.2.3'
+    implementation 'androidx.appcompat:appcompat:1.5.1'
+    implementation 'androidx.core:core-ktx:1.9.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation 'com.github.adriankuta:tree-structure:2.0.3'
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.4'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4ff6c41..bdb1e58 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.github.adriankuta.treedatastructure">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
diff --git a/build.gradle b/build.gradle
index 636974c..8d44e8c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.5.30'
+    ext.kotlin_version = '1.7.20'
     repositories {
         google()
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.2'
+        classpath 'com.android.tools.build:gradle:7.3.1'
         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
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index c08c94e..ceb3bf2 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/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-7.0.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-all.zip
diff --git a/treedatastructure/build.gradle b/treedatastructure/build.gradle
index 8f7ff6c..0d31398 100644
--- a/treedatastructure/build.gradle
+++ b/treedatastructure/build.gradle
@@ -6,14 +6,14 @@ afterEvaluate {
 }
 
 android {
-    compileSdkVersion 31
-    buildToolsVersion "31.0.0"
+    compileSdkVersion 33
+    buildToolsVersion "33.0.0"
 
 
     defaultConfig {
         minSdkVersion 15
-        targetSdkVersion 31
-        versionName "2.0.3"
+        targetSdkVersion 33
+        versionName "2.1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles 'consumer-rules.pro'
     }
@@ -24,16 +24,17 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    namespace 'com.github.adriankuta.datastructure.tree'
 
 }
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.3.1'
-    implementation 'androidx.core:core-ktx:1.6.0'
+    implementation 'androidx.appcompat:appcompat:1.5.1'
+    implementation 'androidx.core:core-ktx:1.9.0'
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.4'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
 }
 
 ext {
diff --git a/treedatastructure/src/main/AndroidManifest.xml b/treedatastructure/src/main/AndroidManifest.xml
index d643e17..cc947c5 100644
--- a/treedatastructure/src/main/AndroidManifest.xml
+++ b/treedatastructure/src/main/AndroidManifest.xml
@@ -1 +1 @@
-<manifest package="com.github.adriankuta.datastructure.tree" />
+<manifest />