diff --git a/app/build.gradle b/app/build.gradle
index 9bf62b4..a55386b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,7 +4,7 @@ android {
     compileSdkVersion 26
     defaultConfig {
         applicationId "us.spotco.malwarescanner"
-        minSdkVersion 21
+        minSdkVersion 16
         targetSdkVersion 26
         versionCode 27
         versionName "2.2"
diff --git a/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java b/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java
index 689f1f6..ef333a2 100644
--- a/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java
+++ b/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java
@@ -5,6 +5,7 @@ import android.app.Notification;
 import android.app.NotificationManager;
 import android.content.Context;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Environment;
 import android.os.SystemClock;
 import android.support.v4.app.NotificationCompat;
@@ -54,8 +55,10 @@ class MalwareScanner extends AsyncTask<Set<File>, Object, String> {
                             .setContentTitle(context.getText(R.string.lblNotificationRealtimeDetection) + " " + malwareDetect[0])
                             .setContentText(malwareDetect[1])
                             .setPriority(Notification.PRIORITY_MAX)
-                            .setVisibility(Notification.VISIBILITY_SECRET)
                             .setDefaults(Notification.DEFAULT_VIBRATE);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                mBuilder.setVisibility(Notification.VISIBILITY_SECRET);
+            }
             notificationManager.notify(new Random().nextInt(), mBuilder.build());
             //Log.d("Theia", result);
         }