diff --git a/build.gradle b/build.gradle
index 51162ba..f7793e4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-	id 'org.springframework.boot' version '3.5.11'
+	id 'org.springframework.boot' version '4.0.3'
 	id 'io.spring.dependency-management' version '1.1.7'
 	id 'java'
   	id "au.com.dius.pact" version "4.6.20"
diff --git a/src/main/java/io/pactflow/example/kafka/KafkaConfiguration.java b/src/main/java/io/pactflow/example/kafka/KafkaConfiguration.java
index 1f4f9c0..b3403a8 100644
--- a/src/main/java/io/pactflow/example/kafka/KafkaConfiguration.java
+++ b/src/main/java/io/pactflow/example/kafka/KafkaConfiguration.java
@@ -11,8 +11,7 @@
 import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
 import org.springframework.kafka.core.ConsumerFactory;
 import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
-import org.springframework.kafka.support.serializer.JsonDeserializer;
-import org.springframework.kafka.support.serializer.JsonSerializer;
+import org.springframework.kafka.support.serializer.JacksonJsonDeserializer;
 
 @EnableKafka
 @Configuration
@@ -24,8 +23,8 @@ public ConsumerFactory<String, Product> productConsumerFactory() {
     props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
     props.put(ConsumerConfig.GROUP_ID_CONFIG, "products_group");
     props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
-    props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, JsonSerializer.class);
-    return new DefaultKafkaConsumerFactory<>(props, new StringDeserializer(), new JsonDeserializer<>(Product.class));
+    props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, JacksonJsonDeserializer.class);
+    return new DefaultKafkaConsumerFactory<>(props, new StringDeserializer(), new JacksonJsonDeserializer<>(Product.class));
   }
 
   @Bean
diff --git a/src/test/java/io/pactflow/example/kafka/ProductsPactTest.java b/src/test/java/io/pactflow/example/kafka/ProductsPactTest.java
index ecf121c..5ef31c5 100644
--- a/src/test/java/io/pactflow/example/kafka/ProductsPactTest.java
+++ b/src/test/java/io/pactflow/example/kafka/ProductsPactTest.java
@@ -18,7 +18,7 @@
 import java.util.List;
 import java.util.Map;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
+import tools.jackson.databind.ObjectMapper;
 
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;