diff --git a/demo/02/src/main/java/pl/amu/edu/demo/data/Person.java b/demo/02/src/main/java/pl/amu/edu/demo/data/Person.java
index e1b4463..b2d7453 100644
--- a/demo/02/src/main/java/pl/amu/edu/demo/data/Person.java
+++ b/demo/02/src/main/java/pl/amu/edu/demo/data/Person.java
@@ -2,12 +2,14 @@ package pl.amu.edu.demo.data;
 
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
+import lombok.Builder;
 import lombok.experimental.FieldDefaults;
 
 import java.time.LocalDate;
 
-@AllArgsConstructor
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 @FieldDefaults(level = AccessLevel.PUBLIC, makeFinal = true)
+@Builder
 public class Person {
     String displayName;
     String firstName;