diff --git a/src/Author.java b/src/Author.java
index 2057127..e43f94b 100644
--- a/src/Author.java
+++ b/src/Author.java
@@ -4,6 +4,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+@SuppressWarnings({"unchecked", "deprecation"})
 public class Author extends Person {
     private List books;
 
@@ -28,7 +29,7 @@ public void addBook(String book) {
         books.add(book);
     }
 
-    @Override
+   
     public String sortName() {
         return String.format("%s, %s", lastName, firstName);
     }
diff --git a/src/Main.java b/src/Main.java
index 08139ff..29594d4 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -1,3 +1,4 @@
+@SuppressWarnings("unchecked")
 public class Main {
     public static void main(String[] args) {
         Author author = new Author("Sandi", "Metz");
diff --git a/src/Person.java b/src/Person.java
index e09b8b3..db0d626 100644
--- a/src/Person.java
+++ b/src/Person.java
@@ -1,6 +1,7 @@
 /**
  * This source file is subject to the license that is bundled with this package in the file LICENSE.
  */
+@SuppressWarnings("unchecked")
 public class Person {
     protected String firstName;
     protected String lastName;