diff --git a/build.gradle b/build.gradle
index 9fbaabb..0d5e42b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,9 +18,9 @@
     implementation 'org.springframework.boot:spring-boot-starter-web'
     providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
-    providedCompile 'javax.websocket:javax.websocket-api:1.1'
+    //providedCompile 'javax.websocket:javax.websocket-api:1.1'
 
-    implementation 'org.springframework.boot:spring-boot-starter-websocket'
+    // implementation 'org.springframework.boot:spring-boot-starter-websocket'
 }
 
 tasks.named('test') {
diff --git a/src/main/java/com/ntlab/irisserver/WebSocketConfig.java b/src/main/java/com/ntlab/irisserver/WebSocketConfig.java
deleted file mode 100644
index 3aa4b7e..0000000
--- a/src/main/java/com/ntlab/irisserver/WebSocketConfig.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.ntlab.irisserver;
-
-//@Configuration
-//@EnableWebSocket
-//public class WebSocketConfig implements WebSocketConfigurer {
-//
-//    @Override
-//    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
-//        //registry.addHandler(helloWorldWebSocket2(), "/hello-websocket2");
-//    }
-//
-//    @Bean
-//    public HelloWorldWebSocket helloWorldWebSocket() {
-//        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
deleted file mode 100644
index baf41a5..0000000
--- a/src/main/java/com/ntlab/irisserver/websockets/HelloWorldWebSocket.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.ntlab.irisserver.websockets;
-
-// ５秒に１回HelloWorldを送るデモ
-//@ServerEndpoint("/hello-websocket")
-//public class HelloWorldWebSocket extends TextWebSocketHandler {
-//    private static final Queue<Session> sessions = new ConcurrentLinkedQueue<>();
-//
-//    static {
-//        ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
-//        service.scheduleWithFixedDelay(HelloWorldWebSocket::broadcast, 5, 5, TimeUnit.SECONDS);
-//    }
-//
-//    @OnMessage
-//    public String onMessage(String message) {
-//        System.out.println("WebSocketで受信したメッセージ/ " + message);
-//        return "WebSocketでメッセージを正常に受信しました！";
-//    }
-//
-//    @OnError
-//    public void onError(Throwable th) {
-//        System.out.println("WebSocketエラーが発生/ " + th.getMessage());
-//    }
-//
-//    @OnOpen
-//    public void onOpen(Session session) {
-//        System.out.println("WebSocketセッション確立");
-//        sessions.add(session);
-//    }
-//
-//    @OnClose
-//    public void onClose(Session session) {
-//        System.out.println("WebSocketセッション終了");
-//        sessions.remove(session);
-//    }
-//
-//    public static void broadcast() {
-//        Date now = new Date();
-//        SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
-//
-//        sessions.forEach(session -> {
-//            session.getAsyncRemote().sendText("HelloWorld！ : " + formatter.format(now));
-//        });
-//    }
-//
-//}
\ No newline at end of file