diff --git a/docs/translate.js/README_ja.md b/docs/translate.js/README_ja.md
index 74a9b59..0e9c2d1 100644
--- a/docs/translate.js/README_ja.md
+++ b/docs/translate.js/README_ja.md
@@ -6,7 +6,7 @@
     AIに任せて、ページの変更なし、言語設定ファイルなし、APIキーなし、SEOに優しい！
 </h4> 
 
-![image](assets/demo.gif)  
+![image](assets/html_demo.gif)  
 
 # 使用方法
 ### 1. テキスト翻訳APIの展開
diff --git a/docs/translate.js/assets/demo.gif b/docs/translate.js/assets/html_demo.gif
similarity index 100%
rename from docs/translate.js/assets/demo.gif
rename to docs/translate.js/assets/html_demo.gif