diff --git a/modules/rhizo_base/templates/sshtunnel.service.erb b/modules/rhizo_base/templates/sshtunnel.service.erb
index c26b4d9..6e3c494 100644
--- a/modules/rhizo_base/templates/sshtunnel.service.erb
+++ b/modules/rhizo_base/templates/sshtunnel.service.erb
@@ -6,7 +6,7 @@ After=network.target
 [Service]
 Type=simple
 WorkingDirectory=/
-ExecStart=/usr/bin/ssh -v -o Compression=no -o IdentitiesOnly=yes -i /root/.ssh/bsc_dev -o StrictHostKeyChecking=no -c arcfour -a <%= @ssh_user %>@<%= @ssh_addr %> -R 220<%= @ssh_p %>:0:22
+ExecStart=/usr/bin/ssh -v -o Compression=no -o IdentitiesOnly=yes -i /root/.ssh/bsc_dev -o StrictHostKeyChecking=no -c aes128-cbc -a <%= @ssh_user %>@<%= @ssh_addr %> -R 220<%= @ssh_p %>:0:22
 TimeoutStopSec=5
 Restart=always
 RestartSec=60