diff --git a/ca-spring-multimodule/domain/entities/pom.xml b/ca-spring-multimodule/domain/entities/pom.xml
index f9d02a7..f3ac6cf 100644
--- a/ca-spring-multimodule/domain/entities/pom.xml
+++ b/ca-spring-multimodule/domain/entities/pom.xml
@@ -15,28 +15,42 @@
 
   <dependencies>
 
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-core</artifactId>
-      <scope>test</scope>
-    </dependency>
+    <!-- compile internal -->
 
+    <!-- compile external -->
     <dependency>
       <groupId>org.projectlombok</groupId>
       <artifactId>lombok</artifactId>
     </dependency>
 
+    <!-- test -->
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter</artifactId>
       <scope>test</scope>
     </dependency>
-
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.pitest</groupId>
+      <artifactId>pitest</artifactId>
+      <version>1.9.9</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.pitest</groupId>
+      <artifactId>pitest-junit5-plugin</artifactId>
+      <version>1.1.0</version>
+      <scope>test</scope>
+    </dependency>
 
   </dependencies>
 
diff --git a/ca-spring-multimodule/domain/entities/src/test/java/com/brunotacca/domain/entities/customer/DefaultCustomerTest.java b/ca-spring-multimodule/domain/entities/src/test/java/com/brunotacca/domain/entities/customer/DefaultCustomerTest.java
index 5606b2b..1c24c9c 100644
--- a/ca-spring-multimodule/domain/entities/src/test/java/com/brunotacca/domain/entities/customer/DefaultCustomerTest.java
+++ b/ca-spring-multimodule/domain/entities/src/test/java/com/brunotacca/domain/entities/customer/DefaultCustomerTest.java
@@ -13,6 +13,8 @@
 import org.mockito.Mockito;
 
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
 
 import java.util.UUID;
 
@@ -44,7 +46,14 @@ void shouldCreateValidCustomer() throws BusinessException {
     assertEquals(validName, created.getName());
     assertEquals(validEmail, created.getEmail());
     assertEquals(validAddress, created.getAddress());
-}
+  }
+
+  @Test
+  void shouldCallAddressValidationWhenCreatingCustomer() throws BusinessException {
+    new DefaultCustomer(UUID.randomUUID(), validName, validEmail, validAddress);
+
+    verify(validAddress, times(1)).validate();
+  }
 
   @Nested
   class CustomerValidationShouldThrow {