diff --git a/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/inmemory/InMemoryCartRepository.java b/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/inmemory/InMemoryCartRepository.java
index 14d10b6..3d8a373 100644
--- a/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/inmemory/InMemoryCartRepository.java
+++ b/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/inmemory/InMemoryCartRepository.java
@@ -27,7 +27,7 @@ public Optional<Cart> findByCustomerId(CustomerId customerId) {
   }
 
   @Override
-  public void deleteById(CustomerId customerId) {
+  public void deleteByCustomerId(CustomerId customerId) {
     carts.remove(customerId);
   }
 }
diff --git a/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/jpa/JpaCartRepository.java b/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/jpa/JpaCartRepository.java
index 1369827..572a95a 100644
--- a/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/jpa/JpaCartRepository.java
+++ b/adapter/src/main/java/eu/happycoders/shop/adapter/out/persistence/jpa/JpaCartRepository.java
@@ -41,7 +41,7 @@ public Optional<Cart> findByCustomerId(CustomerId customerId) {
   }
 
   @Override
-  public void deleteById(CustomerId customerId) {
+  public void deleteByCustomerId(CustomerId customerId) {
     try (EntityManager entityManager = entityManagerFactory.createEntityManager()) {
       entityManager.getTransaction().begin();
 
diff --git a/adapter/src/test/java/eu/happycoders/shop/adapter/out/persistence/AbstractCartRepositoryTest.java b/adapter/src/test/java/eu/happycoders/shop/adapter/out/persistence/AbstractCartRepositoryTest.java
index 95abce5..55ed199 100644
--- a/adapter/src/test/java/eu/happycoders/shop/adapter/out/persistence/AbstractCartRepositoryTest.java
+++ b/adapter/src/test/java/eu/happycoders/shop/adapter/out/persistence/AbstractCartRepositoryTest.java
@@ -113,7 +113,7 @@ void givenExistingCartWithProduct_addProductAndSaveCart_updatesTheExistingCart()
   }
 
   @Test
-  void givenExistingCart_deleteById_deletesTheCart() {
+  void givenExistingCart_deleteByCustomerId_deletesTheCart() {
     CustomerId customerId = createUniqueCustomerId();
 
     Cart existingCart = new Cart(customerId);
@@ -121,17 +121,17 @@ void givenExistingCart_deleteById_deletesTheCart() {
 
     assertThat(cartRepository.findByCustomerId(customerId)).isNotEmpty();
 
-    cartRepository.deleteById(customerId);
+    cartRepository.deleteByCustomerId(customerId);
 
     assertThat(cartRepository.findByCustomerId(customerId)).isEmpty();
   }
 
   @Test
-  void givenNotExistingCart_deleteById_doesNothing() {
+  void givenNotExistingCart_deleteByCustomerId_doesNothing() {
     CustomerId customerId = createUniqueCustomerId();
     assertThat(cartRepository.findByCustomerId(customerId)).isEmpty();
 
-    cartRepository.deleteById(customerId);
+    cartRepository.deleteByCustomerId(customerId);
 
     assertThat(cartRepository.findByCustomerId(customerId)).isEmpty();
   }
diff --git a/application/src/main/java/eu/happycoders/shop/application/port/out/persistence/CartRepository.java b/application/src/main/java/eu/happycoders/shop/application/port/out/persistence/CartRepository.java
index 03d5781..8762633 100644
--- a/application/src/main/java/eu/happycoders/shop/application/port/out/persistence/CartRepository.java
+++ b/application/src/main/java/eu/happycoders/shop/application/port/out/persistence/CartRepository.java
@@ -15,5 +15,5 @@ public interface CartRepository {
 
   Optional<Cart> findByCustomerId(CustomerId customerId);
 
-  void deleteById(CustomerId customerId);
+  void deleteByCustomerId(CustomerId customerId);
 }
diff --git a/application/src/main/java/eu/happycoders/shop/application/service/cart/EmptyCartService.java b/application/src/main/java/eu/happycoders/shop/application/service/cart/EmptyCartService.java
index d766716..8f8b579 100644
--- a/application/src/main/java/eu/happycoders/shop/application/service/cart/EmptyCartService.java
+++ b/application/src/main/java/eu/happycoders/shop/application/service/cart/EmptyCartService.java
@@ -22,6 +22,6 @@ public EmptyCartService(CartRepository cartRepository) {
   public void emptyCart(CustomerId customerId) {
     Objects.requireNonNull(customerId, "'customerId' must not be null");
 
-    cartRepository.deleteById(customerId);
+    cartRepository.deleteByCustomerId(customerId);
   }
 }
diff --git a/application/src/test/java/eu/happycoders/shop/application/service/cart/EmptyCartServiceTest.java b/application/src/test/java/eu/happycoders/shop/application/service/cart/EmptyCartServiceTest.java
index cacf6c0..3ce439f 100644
--- a/application/src/test/java/eu/happycoders/shop/application/service/cart/EmptyCartServiceTest.java
+++ b/application/src/test/java/eu/happycoders/shop/application/service/cart/EmptyCartServiceTest.java
@@ -18,6 +18,6 @@ class EmptyCartServiceTest {
   void emptyCart_invokesDeleteOnThePersistencePort() {
     emptyCartService.emptyCart(TEST_CUSTOMER_ID);
 
-    verify(cartRepository).deleteById(TEST_CUSTOMER_ID);
+    verify(cartRepository).deleteByCustomerId(TEST_CUSTOMER_ID);
   }
 }