diff --git a/scripts/launchdemo.txt b/scripts/launchdemo.txt
index 9253f98..6c9d0b0 100755
--- a/scripts/launchdemo.txt
+++ b/scripts/launchdemo.txt
@@ -1,3 +1,4 @@
+sudo apt update
 sudo apt install ros-kinetic-pepper-mesh*
 
 open 192.168.100.3 
@@ -98,4 +99,3 @@
 
 # Pythonコードの編集
 emacs ~/catkin_ws/src/create_speech/scripts/create_speech.py
-