diff --git a/part2.3-message-broker/build.gradle b/part2.3-message-broker/build.gradle
index 3e3a674..c3b00a3 100644
--- a/part2.3-message-broker/build.gradle
+++ b/part2.3-message-broker/build.gradle
@@ -21,7 +21,7 @@ dependencies {
     implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.5.0'
     implementation 'pl.allegro.tech.hermes:hermes-client:2.6.6'
     implementation 'org.eclipse.jetty:jetty-reactive-httpclient:4.0.3'
-    implementation 'io.projectreactor.netty:reactor-netty:1.1.18'
+    implementation 'io.projectreactor.netty:reactor-netty:1.1.19'
 
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
     testImplementation project(':commons')