diff --git a/01_05.md b/01_05.md
index af75635..1359a8a 100644
--- a/01_05.md
+++ b/01_05.md
@@ -15,7 +15,7 @@ wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key
 sudo sh -c 'echo deb https://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'
 sudo apt-get update -y
 sudo apt-get -y install openjdk-11-jdk
-sudo apt-get install jenkins
+sudo apt-get -y install jenkins
 cat /var/lib/jenkins/secrets/initialAdminPassword
 ```