diff --git a/reactive-logger-example-kotlin/build.gradle.kts b/reactive-logger-example-kotlin/build.gradle.kts
index 156ce43..02aea5e 100644
--- a/reactive-logger-example-kotlin/build.gradle.kts
+++ b/reactive-logger-example-kotlin/build.gradle.kts
@@ -31,7 +31,7 @@ dependencies {
     implementation("org.jetbrains.kotlin:kotlin-reflect")
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor")
-    implementation("com.lmax:disruptor:3.4.4")
+    implementation("com.lmax:disruptor:4.0.0")
     implementation("org.springframework.boot:spring-boot-starter-log4j2")
     annotationProcessor("org.apache.logging.log4j:log4j-core") // For Log4j2 @Plugin