diff --git a/spring-boot-modules/spring-boot-libraries-3/pom.xml b/spring-boot-modules/spring-boot-libraries-3/pom.xml
index 3b5176a99a..f84951f450 100644
--- a/spring-boot-modules/spring-boot-libraries-3/pom.xml
+++ b/spring-boot-modules/spring-boot-libraries-3/pom.xml
@@ -17,11 +17,22 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
+
         <dependency>
             <groupId>org.springframework.kafka</groupId>
             <artifactId>spring-kafka</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.13.1</version>
+        </dependency>
 
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>${postgresql.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.springframework.modulith</groupId>
             <artifactId>spring-modulith-events-api</artifactId>
@@ -33,13 +44,6 @@
             <version>${spring-modulith-events-kafka.version}</version>
         </dependency>
 
-
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.13.1</version>
-        </dependency>
-
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -65,14 +69,14 @@
         </dependency>
         <dependency>
             <groupId>org.testcontainers</groupId>
-            <artifactId>oracle-xe</artifactId>
+            <artifactId>junit-jupiter</artifactId>
             <version>${testcontainers.version}</version>
             <scope>test</scope>
         </dependency>
 
         <dependency>
             <groupId>org.testcontainers</groupId>
-            <artifactId>junit-jupiter</artifactId>
+            <artifactId>postgresql</artifactId>
             <version>${testcontainers.version}</version>
             <scope>test</scope>
         </dependency>
@@ -92,6 +96,7 @@
         <spring-modulith-events-kafka.version>1.1.2</spring-modulith-events-kafka.version>
         <testcontainers.version>1.19.3</testcontainers.version>
         <awaitility.version>4.2.0</awaitility.version>
+        <postgresql.version>42.3.1</postgresql.version>
     </properties>
 
 </project>
diff --git a/spring-boot-modules/spring-boot-libraries-3/src/main/java/com/baeldung/springmodulith/events/externalization/Baeldung.java b/spring-boot-modules/spring-boot-libraries-3/src/main/java/com/baeldung/springmodulith/events/externalization/Baeldung.java
index 1d309a8653..4b861a49c8 100644
--- a/spring-boot-modules/spring-boot-libraries-3/src/main/java/com/baeldung/springmodulith/events/externalization/Baeldung.java
+++ b/spring-boot-modules/spring-boot-libraries-3/src/main/java/com/baeldung/springmodulith/events/externalization/Baeldung.java
@@ -6,32 +6,29 @@ import org.springframework.transaction.annotation.Transactional;
 
 @Service
 public class Baeldung {
+	private final ApplicationEventPublisher applicationEvents;
+	private final ArticleRepository articleRepository;
 
-    private final ApplicationEventPublisher applicationEvents;
-    private final ArticleRepository articleRepository;
+	public Baeldung(ApplicationEventPublisher applicationEvents, ArticleRepository articleRepository) {
+		this.applicationEvents = applicationEvents;
+		this.articleRepository = articleRepository;
+	}
 
+	@Transactional
+	public void createArticle(Article article) {
+		// ... business logic
+		validateArticle(article);
+		article = addArticleTags(article);
+		article = articleRepository.save(article);
 
-    public Baeldung(ApplicationEventPublisher applicationEvents, ArticleRepository articleRepository) {
-        this.applicationEvents = applicationEvents;
-        this.articleRepository = articleRepository;
-    }
+		applicationEvents.publishEvent(new ArticlePublishedEvent(article.slug(), article.title()));
+	}
 
-    @Transactional
-    public void createArticle(Article article) {
-        // ... business logic
-        validateArticle(article);
-        article = addArticleTags(article);
-        article = articleRepository.save(article);
+	private Article addArticleTags(Article article) {
+		return article;
+	}
 
-        applicationEvents.publishEvent(new ArticlePublishedEvent(article.slug(), article.title()));
-    }
-
-
-    private Article addArticleTags(Article article) {
-        return article;
-    }
-
-    private void validateArticle(Article article) {
-    }
+	private void validateArticle(Article article) {
+	}
 
 }
diff --git a/spring-boot-modules/spring-boot-libraries-3/src/main/resources/application.yml b/spring-boot-modules/spring-boot-libraries-3/src/main/resources/application.yml
index c1c9db1489..9885be68b4 100644
--- a/spring-boot-modules/spring-boot-libraries-3/src/main/resources/application.yml
+++ b/spring-boot-modules/spring-boot-libraries-3/src/main/resources/application.yml
@@ -1,4 +1,3 @@
-logging.level.org.springframework.orm.jpa: TRACE
 
 spring.kafka:
   bootstrap-servers: localhost:9092
@@ -12,7 +11,18 @@ spring.kafka:
     auto-offset-reset: earliest
 
 spring.modulith:
-  events:
-    republish-outstanding-events-on-startup: true
-    jdbc.schema-initialization.enabled: true
+  republish-outstanding-events-on-restart: true
+  events.jdbc.schema-initialization.enabled: true
 
+logging.level.org.springframework.orm.jpa: TRACE
+
+spring:
+  datasource:
+#    url: jdbc:postgresql://localhost:5432/test_db
+    username: test_user
+    password: test_pass
+  jpa:
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.PostgreSQLDialect
+        hbm2ddl.auto: create
diff --git a/spring-boot-modules/spring-boot-libraries-3/src/test/java/com/baeldung/springmodulith/events/externalization/EventsExternalizationLiveTest.java b/spring-boot-modules/spring-boot-libraries-3/src/test/java/com/baeldung/springmodulith/events/externalization/EventsExternalizationLiveTest.java
index 0ce33f6bd8..4cb94bbe1a 100644
--- a/spring-boot-modules/spring-boot-libraries-3/src/test/java/com/baeldung/springmodulith/events/externalization/EventsExternalizationLiveTest.java
+++ b/spring-boot-modules/spring-boot-libraries-3/src/test/java/com/baeldung/springmodulith/events/externalization/EventsExternalizationLiveTest.java
@@ -1,10 +1,8 @@
 package com.baeldung.springmodulith.events.externalization;
 
-import static java.time.Duration.ofMillis;
-import static java.time.Duration.ofSeconds;
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.testcontainers.shaded.org.awaitility.Awaitility.await;
-
+import com.baeldung.springmodulith.Application;
+import com.baeldung.springmodulith.events.externalization.listener.TestKafkaListenerConfig;
+import com.baeldung.springmodulith.events.externalization.listener.TestListener;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -12,15 +10,16 @@ import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.context.DynamicPropertyRegistry;
 import org.springframework.test.context.DynamicPropertySource;
 import org.testcontainers.containers.KafkaContainer;
-import org.testcontainers.containers.OracleContainer;
+import org.testcontainers.containers.PostgreSQLContainer;
 import org.testcontainers.junit.jupiter.Container;
 import org.testcontainers.junit.jupiter.Testcontainers;
 import org.testcontainers.shaded.org.awaitility.Awaitility;
 import org.testcontainers.utility.DockerImageName;
 
-import com.baeldung.springmodulith.Application;
-import com.baeldung.springmodulith.events.externalization.listener.TestKafkaListenerConfig;
-import com.baeldung.springmodulith.events.externalization.listener.TestListener;
+import static java.time.Duration.ofMillis;
+import static java.time.Duration.ofSeconds;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.testcontainers.shaded.org.awaitility.Awaitility.await;
 
 @Testcontainers
 @SpringBootTest(classes = { Application.class, TestKafkaListenerConfig.class })
@@ -37,26 +36,26 @@ class EventsExternalizationLiveTest {
     static KafkaContainer kafkaContainer = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:latest"));
 
     @Container
-    static OracleContainer oracleContainer = new OracleContainer("gvenzl/oracle-xe:21-slim-faststart")
-        .withDatabaseName("test")
-        .withUsername("user")
-        .withPassword("pass");
+    public static PostgreSQLContainer postgresqlContainer = new PostgreSQLContainer()
+            .withDatabaseName("test_db")
+            .withUsername("test_user")
+            .withPassword("test_pass");
 
     @DynamicPropertySource
     static void dynamicProperties(DynamicPropertyRegistry registry) {
         registry.add("spring.kafka.bootstrap-servers", kafkaContainer::getBootstrapServers);
-        registry.add("spring.datasource.url", oracleContainer::getJdbcUrl);
+        registry.add("spring.datasource.url", postgresqlContainer::getJdbcUrl);
     }
 
     static {
-        Awaitility.setDefaultTimeout(ofSeconds(5));
+        Awaitility.setDefaultTimeout(ofSeconds(50));
         Awaitility.setDefaultPollDelay(ofMillis(100));
     }
 
     @BeforeEach
     void beforeEach() {
         listener.reset();
-        repository.deleteAll();
+//        repository.deleteAll();
     }
 
     @Test
@@ -94,4 +93,4 @@ class EventsExternalizationLiveTest {
             .extracting(Article::title, Article::author)
             .containsExactly("Introduction to Spring Boot", "John Doe");
     }
-}
\ No newline at end of file
+}