diff --git a/docker/install/ubuntu_install_chisel.sh b/docker/install/ubuntu_install_chisel.sh
index 4aac21a59635..6a0dafc8ed41 100755
--- a/docker/install/ubuntu_install_chisel.sh
+++ b/docker/install/ubuntu_install_chisel.sh
@@ -20,8 +20,12 @@ set -e
 set -u
 set -o pipefail
 
+# The https:// source added below required an apt https transport
+# support.
+apt-get install apt-transport-https
+
 # Install the necessary dependencies for Chisel
-echo "deb https://dl.bintray.com/sbt/debian /" | sudo tee -a /etc/apt/sources.list.d/sbt.list
-sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
-sudo apt-get update
-sudo apt-get install -y verilator sbt
+echo "deb https://dl.bintray.com/sbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list
+apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823
+apt-get update
+apt-get install -y verilator sbt