diff --git a/build.gradle b/build.gradle
index 3bce0eb..4de7029 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,9 +3,10 @@
 buildscript {
     repositories {
         mavenCentral()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0-rc1'
+        classpath 'com.android.tools.build:gradle:4.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -22,6 +23,7 @@ allprojects {
 
     repositories {
         mavenCentral()
+        google()
     }
 }
 
diff --git a/gradle.properties b/gradle.properties
index 5a3ee28..34cb91b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,4 +11,6 @@ POM_LICENCE_NAME=The Apache Software License, Version 2.0
 POM_LICENCE_URL=http://www.apache.org/licenses/LICENSE-2.0.txt
 POM_LICENCE_DIST=repo
 POM_DEVELOPER_ID=filippudak
-POM_DEVELOPER_NAME=Filip Pudak
\ No newline at end of file
+POM_DEVELOPER_NAME=Filip Pudak
+android.useAndroidX=true
+android.enableJetifier=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index bb2f9d0..ae7ff36 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-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
diff --git a/library/build.gradle b/library/build.gradle
index d81cc8f..f8cdbb9 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -1,12 +1,11 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 21
-    buildToolsVersion "21.1.1"
+    compileSdkVersion 30
 
     defaultConfig {
         minSdkVersion 4
-        targetSdkVersion 21
+        targetSdkVersion 30
         versionCode Integer.parseInt(project.VERSION_CODE)
         versionName project.VERSION_NAME
     }
@@ -14,7 +13,7 @@ android {
 }
 
 dependencies {
-    compile 'com.android.support:support-v4:21.0.2'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
 }
 
 apply from: '../maven_push.gradle'
\ No newline at end of file
diff --git a/library/src/main/java/com/filippudak/ProgressPieView/ProgressPieView.java b/library/src/main/java/com/filippudak/ProgressPieView/ProgressPieView.java
index 55f7e31..35e0c98 100644
--- a/library/src/main/java/com/filippudak/ProgressPieView/ProgressPieView.java
+++ b/library/src/main/java/com/filippudak/ProgressPieView/ProgressPieView.java
@@ -15,9 +15,10 @@
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
-import android.support.v4.util.LruCache;
 import android.view.View;
 
+import androidx.collection.LruCache;
+
 public class ProgressPieView extends View {
 
     public interface OnProgressListener {
diff --git a/sample/build.gradle b/sample/build.gradle
index 2a5698e..91dcc4e 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -1,13 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 21
-    buildToolsVersion "21.1.1"
+    compileSdkVersion 30
 
     defaultConfig {
         applicationId "com.filippudak.ProgressPieView.sample"
-        minSdkVersion 8
-        targetSdkVersion 21
+        minSdkVersion 21
+        targetSdkVersion 30
         versionCode Integer.parseInt(project.VERSION_CODE)
         versionName project.VERSION_NAME
     }
@@ -15,6 +14,6 @@ android {
 }
 
 dependencies {
-    compile 'com.android.support:appcompat-v7:21.0.2'
-    compile project(':library')
+    implementation 'androidx.appcompat:appcompat:1.0.0'
+    implementation project(':library')
 }
diff --git a/sample/src/main/java/com/filippudak/ProgressPieView/sample/MainActivity.java b/sample/src/main/java/com/filippudak/ProgressPieView/sample/MainActivity.java
index 520bca1..846456e 100644
--- a/sample/src/main/java/com/filippudak/ProgressPieView/sample/MainActivity.java
+++ b/sample/src/main/java/com/filippudak/ProgressPieView/sample/MainActivity.java
@@ -1,7 +1,6 @@
 package com.filippudak.ProgressPieView.sample;
 
 import android.os.Bundle;
-import android.support.v7.app.ActionBarActivity;
 import android.view.Gravity;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -9,9 +8,11 @@
 import android.widget.LinearLayout;
 import android.widget.SeekBar;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import com.filippudak.ProgressPieView.ProgressPieView;
 
-public class MainActivity extends ActionBarActivity {
+public class MainActivity extends AppCompatActivity {
 
     private static final int SIZE = 96;
     private static final int MARGIN = 8;