diff --git a/app/build.gradle b/app/build.gradle
index be765ab..7643f11 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,4 +22,5 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.annotation:annotation:1.4.0'
 }
diff --git a/app/src/main/java/com/ssaurel/lockdevice/MyAdmin.java b/app/src/main/java/com/ssaurel/lockdevice/MyAdmin.java
index 36bd7e0..84d4802 100644
--- a/app/src/main/java/com/ssaurel/lockdevice/MyAdmin.java
+++ b/app/src/main/java/com/ssaurel/lockdevice/MyAdmin.java
@@ -1,6 +1,6 @@
 package com.ssaurel.lockdevice;
 
-import android.annotation.NonNull;
+import androidx.annotation.NonNull;
 import android.app.admin.DeviceAdminReceiver;
 import android.content.Context;
 import android.content.Intent;