diff --git a/Tools/CI-linux-install.sh b/Tools/CI-linux-install.sh
index 0ce8f1203..ab5b10ddb 100644
--- a/Tools/CI-linux-install.sh
+++ b/Tools/CI-linux-install.sh
@@ -96,6 +96,20 @@ case "$SWIGLANG" in
 		$RETRY sudo apt-get -qq install r-base
 		;;
 	"ruby")
+		if ! command -v rvm; then
+			case "$VER" in
+				1.9 | 2.0 | 2.1 | 2.2 | 2.3 )
+					$RETRY sudo apt-get -qq install libgdbm-dev libncurses5-dev libyaml-dev libssl1.0-dev
+					;;
+			esac
+			# YOLO
+			curl -sSL https://rvm.io/mpapis.asc | gpg --import -
+			curl -sSL https://rvm.io/pkuczynski.asc | gpg --import -
+			curl -sSL https://get.rvm.io | bash -s stable
+			set +x
+			source $HOME/.rvm/scripts/rvm
+			set -x
+		fi
 		if [[ "$VER" == "2.7" || "$VER" == "3.0" ]]; then
 			# Ruby 2.7+ support is currently only rvm master (30 Dec 2019)
 			$RETRY rvm get master