diff --git a/actions/openvpn b/actions/openvpn
index b61e932a3..726f1e1a9 100755
--- a/actions/openvpn
+++ b/actions/openvpn
@@ -50,6 +50,7 @@ ATTR_FILE = os.path.join(KEYS_DIRECTORY, 'pki', 'index.txt.attr')
 SERVER_CONFIGURATION = '''
 port 1194
 proto udp
+proto udp6
 dev tun
 client-to-client
 ca /etc/openvpn/freedombox-keys/pki/ca.crt
@@ -67,6 +68,7 @@ CLIENT_CONFIGURATION = '''
 client
 remote {remote} 1194
 proto udp
+proto udp6
 dev tun
 nobind
 remote-cert-tls server
@@ -209,6 +211,8 @@ def subcommand_upgrade(_):
         action_utils.service_disable(OLD_SERVICE_NAME)
         action_utils.service_enable(SERVICE_NAME)
 
+    action_utils.service_try_restart(SERVICE_NAME)
+
 
 def _write_server_config():
     """Write server configuration."""