diff --git a/framework/src/Volo.Abp.EventBus.Azure/Volo/Abp/EventBus/Azure/AzureDistributedEventBus.cs b/framework/src/Volo.Abp.EventBus.Azure/Volo/Abp/EventBus/Azure/AzureDistributedEventBus.cs
index 0004bce24b..73bf5cfc3d 100644
--- a/framework/src/Volo.Abp.EventBus.Azure/Volo/Abp/EventBus/Azure/AzureDistributedEventBus.cs
+++ b/framework/src/Volo.Abp.EventBus.Azure/Volo/Abp/EventBus/Azure/AzureDistributedEventBus.cs
@@ -2,7 +2,6 @@ using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.Json;
 using System.Threading.Tasks;
 using Azure.Messaging.ServiceBus;
 using Microsoft.Extensions.DependencyInjection;
diff --git a/framework/src/Volo.Abp.EventBus.Dapr/Volo/Abp/EventBus/Dapr/DaprDistributedEventBus.cs b/framework/src/Volo.Abp.EventBus.Dapr/Volo/Abp/EventBus/Dapr/DaprDistributedEventBus.cs
index d122d3e5e3..5e89571554 100644
--- a/framework/src/Volo.Abp.EventBus.Dapr/Volo/Abp/EventBus/Dapr/DaprDistributedEventBus.cs
+++ b/framework/src/Volo.Abp.EventBus.Dapr/Volo/Abp/EventBus/Dapr/DaprDistributedEventBus.cs
@@ -288,11 +288,6 @@ public class DaprDistributedEventBus : DistributedEventBusBase, ISingletonDepend
     {
         return EventTypes.GetOrDefault(eventName);
     }
-    
-    public bool IsDynamicEvent(string eventName)
-    {
-        return false;
-    }
 
     /// <inheritdoc/>
     public override void Unsubscribe(string eventName, IEventHandlerFactory factory)
diff --git a/framework/src/Volo.Abp.EventBus.Kafka/Volo/Abp/EventBus/Kafka/KafkaDistributedEventBus.cs b/framework/src/Volo.Abp.EventBus.Kafka/Volo/Abp/EventBus/Kafka/KafkaDistributedEventBus.cs
index 792442aa06..6a886afbc4 100644
--- a/framework/src/Volo.Abp.EventBus.Kafka/Volo/Abp/EventBus/Kafka/KafkaDistributedEventBus.cs
+++ b/framework/src/Volo.Abp.EventBus.Kafka/Volo/Abp/EventBus/Kafka/KafkaDistributedEventBus.cs
@@ -2,7 +2,6 @@ using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.Json;
 using System.Threading.Tasks;
 using Confluent.Kafka;
 using Microsoft.Extensions.DependencyInjection;