diff --git a/.github/kokoro/steps/hostsetup.sh b/.github/kokoro/steps/hostsetup.sh
index 16a423b9..30d1a374 100755
--- a/.github/kokoro/steps/hostsetup.sh
+++ b/.github/kokoro/steps/hostsetup.sh
@@ -34,3 +34,19 @@ sudo apt-get install -y \
 
 echo "----------------------------------------"
 
+(
+	cd /tmp
+	# Download ptyget to enable ptybandage.
+	wget https://storage.googleapis.com/prjxray-deps-debs/ptyget_6_amd64.deb
+	sudo dpkg --install ptyget_6_amd64.deb
+	which ptybandage
+	ptybandage --help || true
+
+	# Upgrade pstree to support the -T flag.
+	wget https://storage.googleapis.com/prjxray-deps-debs/psmisc_23.2-1_amd64.deb
+	sudo dpkg --install psmisc_23.2-1_amd64.deb
+	which pstree
+	pstree --help || true
+)
+
+echo "----------------------------------------"