diff --git a/README.md b/README.md
index b6913bf..fc39d97 100644
--- a/README.md
+++ b/README.md
@@ -144,7 +144,7 @@ void loop() {
 
 # 動作Demo
 
-[![Youtube](img/IMG_5779.jpeg))([https://youtu.be/QVjbMRq6WlM)]
+[![Youtube](img/youtube.png))([https://youtu.be/QVjbMRq6WlM)]
 
 
 ## サンプルスケッチ