diff --git a/baseimage/initializeBaseUbuntuImage.sh b/baseimage/initializeBaseUbuntuImage.sh
index 289e2ae5a..ed7869ff0 100644
--- a/baseimage/initializeBaseUbuntuImage.sh
+++ b/baseimage/initializeBaseUbuntuImage.sh
@@ -27,7 +27,7 @@ fi
 export DEBIAN_FRONTEND=noninteractive
 
 echo "=== Upgrade ==="
-apt-get update
+apt-get update -y
 apt-get dist-upgrade -y
 apt-get install -y curl