diff --git a/build.gradle b/build.gradle
index 9c93cd0..4625fc4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,9 +1,16 @@
 apply plugin: 'com.android.library'
 
 android {
+    compileSdkVersion 28
+
     sourceSets.main {
         manifest.srcFile 'AndroidManifest.xml'
         java.srcDirs = ['src']
         res.srcDirs = ['res']
     }
+
+    dependencies {
+        def androidx_version = "1.0.0-rc02"
+        implementation "androidx.appcompat:appcompat:$androidx_version"
+    }
 }
diff --git a/src/com/android/colorpicker/ColorPickerDialog.java b/src/com/android/colorpicker/ColorPickerDialog.java
index 0d24b49..aabc2d1 100644
--- a/src/com/android/colorpicker/ColorPickerDialog.java
+++ b/src/com/android/colorpicker/ColorPickerDialog.java
@@ -17,14 +17,15 @@
 package com.android.colorpicker;
 
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.app.Dialog;
-import android.app.DialogFragment;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.ProgressBar;
 
+import androidx.appcompat.app.AlertDialog;
+import androidx.fragment.app.DialogFragment;
+
 import com.android.colorpicker.ColorPickerSwatch.OnColorSelectedListener;
 
 /**