diff --git a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
index 7054fe87..ff1834e6 100644
--- a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
+++ b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java
@@ -184,6 +184,13 @@ public class ViewerContainerFragment extends Fragment {
         builder.show();
     }
 
+    private void updateTabTitle(int position, String title) {
+        ArrayList<String> fragmentTitleList = viewerViewPagerAdapter.getFragmentTitleList();
+        fragmentTitleList.set(position, title);
+        viewerViewPagerAdapter.setFragmentTitleList(fragmentTitleList);
+        viewerViewPagerAdapter.notifyItemChanged(position);
+    }
+
     /**
      * Toolbarをinitする
      *