diff --git a/lib/homebus/broker.rb b/lib/homebus/broker.rb
index ed534e4..e6267a0 100644
--- a/lib/homebus/broker.rb
+++ b/lib/homebus/broker.rb
@@ -15,7 +15,7 @@ def connect!
       abort 'no broker'
     end
 
-    @mqtt = MQTT::Client.connect(host: @host, port: @port, username: @username, password: @password, ssl: :TLSv2)
+    @mqtt = MQTT::Client.connect(host: @host, port: @port, username: @username, password: @password, ssl: :TLSv1_2)
   end
 
   def configured?
diff --git a/lib/homebus/version.rb b/lib/homebus/version.rb
index 0be3805..3e9470b 100644
--- a/lib/homebus/version.rb
+++ b/lib/homebus/version.rb
@@ -1,3 +1,3 @@
 module Homebus
-  VERSION='0.23.0'
+  VERSION='0.23.1'
 end