diff --git a/framework/src/main/java/org/toop/framework/eventbus/bus/DefaultEventBus.java b/framework/src/main/java/org/toop/framework/eventbus/bus/DefaultEventBus.java
index 5da6616..9aeeb05 100644
--- a/framework/src/main/java/org/toop/framework/eventbus/bus/DefaultEventBus.java
+++ b/framework/src/main/java/org/toop/framework/eventbus/bus/DefaultEventBus.java
@@ -5,8 +5,6 @@ import org.toop.framework.eventbus.events.EventType;
 import org.toop.framework.eventbus.holder.SubscriberStore;
 import org.toop.framework.eventbus.subscriber.Subscriber;
 
-import java.util.ArrayList;
-import java.util.List;
 import java.util.function.Consumer;
 
 public class DefaultEventBus implements EventBus {
diff --git a/framework/src/main/java/org/toop/framework/eventbus/bus/DisruptorEventBus.java b/framework/src/main/java/org/toop/framework/eventbus/bus/DisruptorEventBus.java
index f6aefcb..df1502a 100644
--- a/framework/src/main/java/org/toop/framework/eventbus/bus/DisruptorEventBus.java
+++ b/framework/src/main/java/org/toop/framework/eventbus/bus/DisruptorEventBus.java
@@ -9,7 +9,6 @@ import org.toop.framework.eventbus.subscriber.Subscriber;
 import org.toop.framework.eventbus.events.EventType;
 import org.toop.framework.eventbus.holder.SubscriberStore;
 
-import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.ThreadFactory;
 import java.util.function.Consumer;