diff --git a/examples/spring-mail-integration-demo/pom.xml b/examples/spring-mail-integration-demo/pom.xml
index 7209254c..60853b1b 100644
--- a/examples/spring-mail-integration-demo/pom.xml
+++ b/examples/spring-mail-integration-demo/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.2</version>
+		<version>2.7.4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java b/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java
index 99f87031..a78f0f47 100644
--- a/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java
+++ b/examples/spring-mail-integration-demo/src/main/java/ru/otus/example/springmail_integration_demo/integration/IntegrationConfig.java
@@ -71,12 +71,10 @@ public class IntegrationConfig {
                                 .transform(messageTransformer, TRANSFORM_METHOD_NAME)
                                 .handle(m -> {
                                     System.out.println("Как будто посылаем письмо: " + m.getPayload());
-/*
-                                    if (!messageWasSandedOnceFlag.get()) {
+/*                                    if (!messageWasSandedOnceFlag.get()) {
                                         mailSender.send((SimpleMailMessage) m.getPayload());
                                         messageWasSandedOnceFlag.set(true);
-                                    }
-*/
+                                    }*/
                                 })
                         )
                         .subFlowMapping(false, IntegrationFlowDefinition::nullChannel)
diff --git a/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/pom.xml b/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/pom.xml
index 55fe0f07..67e24de0 100644
--- a/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/pom.xml
+++ b/examples/spring-mail-rabbitmq-demo/user-activity-emitter-microservice/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.2</version>
+		<version>2.7.4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/examples/spring-mail-rabbitmq-demo/user-activity-models/pom.xml b/examples/spring-mail-rabbitmq-demo/user-activity-models/pom.xml
index f8a17716..c80439c3 100644
--- a/examples/spring-mail-rabbitmq-demo/user-activity-models/pom.xml
+++ b/examples/spring-mail-rabbitmq-demo/user-activity-models/pom.xml
@@ -19,7 +19,7 @@
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-annotations</artifactId>
-			<version>2.13.3</version>
+			<version>2.13.4</version>
 		</dependency>
 
 		<dependency>
diff --git a/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/pom.xml b/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/pom.xml
index c7641184..557d42d0 100644
--- a/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/pom.xml
+++ b/examples/spring-mail-rabbitmq-demo/user-activity-processor-microservice/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.2</version>
+		<version>2.7.4</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>