diff --git a/app/build.gradle b/app/build.gradle
index 2afe007b..ff74fdaf 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,8 +9,8 @@ android {
         applicationId "jp.juggler.subwaytooter"
         minSdkVersion 21
         targetSdkVersion 26
-        versionCode 170
-        versionName "1.7.0"
+        versionCode 171
+        versionName "1.7.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
diff --git a/app/src/main/java/jp/juggler/subwaytooter/ActPost.java b/app/src/main/java/jp/juggler/subwaytooter/ActPost.java
index 1198100a..c7b08b1c 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/ActPost.java
+++ b/app/src/main/java/jp/juggler/subwaytooter/ActPost.java
@@ -1026,8 +1026,13 @@ public class ActPost extends AppCompatActivity implements View.OnClickListener,
 						return isCancelled();
 					}
 					
-					@Override public void publishApiProgress( String s ){
-						progress.setMessage( s );
+					@Override public void publishApiProgress( final String s ){
+						Utils.runOnMainThread( new Runnable() {
+							@Override public void run(){
+								progress.setMessage( s );
+							}
+						} );
+						
 					}
 				} );
 				client.setAccount( target_account );