diff --git a/pom.xml b/pom.xml
index 30ef907..3347f94 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
   <groupId>info.istlab.IoTP</groupId>
   <artifactId>IoTP</artifactId>
   <packaging>jar</packaging>
-  <version>0.53</version>
+  <version>0.54</version>
   <name>IoTP</name>
   <url>http://maven.apache.org</url>
 
diff --git a/src/main/java/info/istlab/IoTP/App.java b/src/main/java/info/istlab/IoTP/App.java
index 1397bbc..5a4611a 100644
--- a/src/main/java/info/istlab/IoTP/App.java
+++ b/src/main/java/info/istlab/IoTP/App.java
@@ -18,6 +18,8 @@
 import java.security.ProtectionDomain;
 import java.util.ArrayList;
 
+import javax.swing.SwingUtilities;
+
 /**
  * Hello world!
  *
@@ -66,7 +68,9 @@
             System.exit(0);
         workingDir = ret.getAbsolutePath();
         System.out.println(ret);
-        new Launcher(ret).setVisible(true);
+        SwingUtilities.invokeLater(() -> {
+            new Launcher(ret).setVisible(true);// SwingUtilities
+        });
     }
 
     public static void findDotGitFileRecursive(File dir, ArrayList<File> iotDirs, int level) {
diff --git a/src/main/java/info/istlab/IoTP/Editor.java b/src/main/java/info/istlab/IoTP/Editor.java
index ee48c3b..addbbd5 100644
--- a/src/main/java/info/istlab/IoTP/Editor.java
+++ b/src/main/java/info/istlab/IoTP/Editor.java
@@ -28,6 +28,7 @@
 import javax.swing.JPanel;
 import javax.swing.JSlider;
 import javax.swing.JTextField;
+import javax.swing.SwingUtilities;
 import javax.swing.WindowConstants;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
@@ -169,9 +170,11 @@
 
         getContentPane().add(topP, BorderLayout.NORTH);
 
-        setVisible(true);
-        textArea.requestFocus();
-        textArea.setCaretPosition(0);
+        SwingUtilities.invokeLater(() -> {
+            setVisible(true);// SwingUtilities
+            textArea.requestFocus();
+            textArea.setCaretPosition(0);
+        });
 
         lastOpened = this;
     }
diff --git a/src/main/java/info/istlab/IoTP/JTAConsole.java b/src/main/java/info/istlab/IoTP/JTAConsole.java
index 7f078fa..caee4a3 100644
--- a/src/main/java/info/istlab/IoTP/JTAConsole.java
+++ b/src/main/java/info/istlab/IoTP/JTAConsole.java
@@ -22,6 +22,7 @@
 import java.util.Stack;
 
 import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
 import javax.swing.text.BadLocationException;
 
 import org.fife.ui.rtextarea.RTextScrollPane;
@@ -63,7 +64,9 @@
 
         winStack.push(this);
         originalContent = new StringBuilder();
-        frame.setVisible(true);
+        SwingUtilities.invokeLater(()-> {
+            frame.setVisible(true); // SwingUtilities
+        });
     }
 
     public void Systemoutprintln(String s) {
diff --git a/src/main/java/info/istlab/IoTP/Launcher.java b/src/main/java/info/istlab/IoTP/Launcher.java
index 4a7a04a..1541564 100644
--- a/src/main/java/info/istlab/IoTP/Launcher.java
+++ b/src/main/java/info/istlab/IoTP/Launcher.java
@@ -31,7 +31,7 @@
 public class Launcher extends JFrame implements MouseInputListener, KeyListener, Runnable {
 
     public static Launcher theapp;
-    public static String version = "0.53";
+    public static String version = "0.54";
     static int reboot_msec = 2000;
     // JPanel mainP;
     File root;
diff --git a/src/main/java/info/istlab/IoTP/MqttWindow.java b/src/main/java/info/istlab/IoTP/MqttWindow.java
index e925722..f1258e1 100644
--- a/src/main/java/info/istlab/IoTP/MqttWindow.java
+++ b/src/main/java/info/istlab/IoTP/MqttWindow.java
@@ -23,6 +23,7 @@
 import javax.swing.JScrollPane;
 import javax.swing.JTextArea;
 import javax.swing.JTextField;
+import javax.swing.SwingUtilities;
 
 import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken;
 import org.eclipse.paho.client.mqttv3.MqttCallback;
@@ -123,7 +124,9 @@
 
         setSize(600, 500);
         setLocation(centerOfScreen(getSize()));
-        setVisible(true);
+        SwingUtilities.invokeLater(() -> {
+            setVisible(true);// SwingUtilities
+        }); 
         setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
         jtf.addActionListener(this);
         addWindowListener(this); // Xをおしたらserial closeする
diff --git a/src/main/java/info/istlab/IoTP/SerialWindow.java b/src/main/java/info/istlab/IoTP/SerialWindow.java
index 5455239..232a15f 100644
--- a/src/main/java/info/istlab/IoTP/SerialWindow.java
+++ b/src/main/java/info/istlab/IoTP/SerialWindow.java
@@ -21,6 +21,7 @@
 import javax.swing.JScrollPane;
 import javax.swing.JTextArea;
 import javax.swing.JTextField;
+import javax.swing.SwingUtilities;
 
 import com.fazecast.jSerialComm.SerialPort;
 import com.fazecast.jSerialComm.SerialPortDataListener;
@@ -74,6 +75,7 @@
         // }
     }
 
+    static SerialWindow swin;
     public static void invoke(boolean popup_if_zero) {
         if (serialChecker == null)
             serialChecker = Launcher.theapp.serialChecker;
@@ -83,13 +85,15 @@
                 JOptionPane.showMessageDialog(Launcher.theapp, "No available serial ports.");
             return;
         }
-        SerialWindow swin = hash.get(App.serialName);
+        swin = hash.get(App.serialName);
         if (swin == null) {
             SerialPort sp = serialChecker.portHash.get(App.serialName);
             swin = new SerialWindow(sp);
         } else {
-            swin.setVisible(true);
-            swin.reconnect();
+            SwingUtilities.invokeLater(() -> {
+                swin.setVisible(true); //SwingUtilities
+                swin.reconnect();
+            });
         }
         // SerialPort[] ports = SerialPort.getCommPorts();
         // ArrayList<SerialPort> splist_valid = new ArrayList<SerialPort>();
@@ -158,7 +162,9 @@
 
         setSize(500, 400);
         setLocation(centerOfScreen(getSize()));
-        setVisible(true);
+        SwingUtilities.invokeLater(() -> {
+            setVisible(true);// SwingUtilities
+        });
         setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); // この下のWindowListenerで処理する
         jtf.addActionListener(this);
         addWindowListener(this); // Xをおしたらserial closeする
@@ -326,8 +332,10 @@
             SerialPort sp = ent.getValue();
             if (hash.get(key) != null) {
                 SerialWindow swin = hash.get(key);
-                swin.setVisible(true);
-                swin.reconnect();
+                SwingUtilities.invokeLater(() -> {
+                    swin.setVisible(true); //SwingUtilities
+                    swin.reconnect();
+                });
             } else {
                 new SerialWindow(sp);
             }