diff --git a/src/main/java/com/ntlab/irisserver/WebSocketConfig.java b/src/main/java/com/ntlab/irisserver/WebSocketConfig.java
index fc7f357..c3c9744 100644
--- a/src/main/java/com/ntlab/irisserver/WebSocketConfig.java
+++ b/src/main/java/com/ntlab/irisserver/WebSocketConfig.java
@@ -12,7 +12,7 @@
 
     @Override
     public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
-        registry.addHandler(helloWorldWebSocketHandler(), "/ws");
+//        registry.addHandler(helloWorldWebSocketHandler(), "/ws");
     }
 
     @Bean
@@ -21,11 +21,6 @@
     }
 
     @Bean
-    public WebSocketHandler helloWorldWebSocketHandler() {
-        return new HelloWorldWebSocket();
-    }
-
-    @Bean
     public ServerEndpointExporter serverEndpointExporter() {
         return new ServerEndpointExporter();
     }
diff --git a/src/main/java/com/ntlab/irisserver/websockets/HelloWorldWebSocket.java b/src/main/java/com/ntlab/irisserver/websockets/HelloWorldWebSocket.java
index 9598f46..fd40c06 100644
--- a/src/main/java/com/ntlab/irisserver/websockets/HelloWorldWebSocket.java
+++ b/src/main/java/com/ntlab/irisserver/websockets/HelloWorldWebSocket.java
@@ -16,7 +16,7 @@
 
 // ５秒に１回HelloWorldを送るデモ
 @ServerEndpoint("/hello-websocket")
-public class HelloWorldWebSocket extends TextWebSocketHandler {
+public class HelloWorldWebSocket {
     private static final Queue<Session> sessions = new ConcurrentLinkedQueue<>();
 
     static {