diff --git a/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt b/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt
index d63abfb5..5ff00f5a 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt
@@ -17,6 +17,7 @@
 package io.emeraldpay.dshackle
 
 import io.netty.handler.ssl.OpenSsl
+import io.netty.util.ResourceLeakDetector
 import org.slf4j.LoggerFactory
 import org.springframework.boot.ResourceBanner
 import org.springframework.boot.SpringApplication
@@ -37,6 +38,8 @@ fun main(args: Array<String>) {
 
     HeapDumpCreator.init()
 
+    ResourceLeakDetector.setLevel(ResourceLeakDetector.Level.ADVANCED)
+
     val cores = Runtime.getRuntime().availableProcessors()
     val maxMemory: Long = Runtime.getRuntime().maxMemory() / (1024 * 1024).toLong()
     log.info("Max heap size: {} MB, number of cores: {}", maxMemory, cores)