diff --git a/src/emqttd.app.src b/src/emqttd.app.src
index c35f7465d..7591c61d5 100644
--- a/src/emqttd.app.src
+++ b/src/emqttd.app.src
@@ -1,7 +1,7 @@
 {application, emqttd,
  [
   {id, "emqttd"},
-  {vsn, "0.12.3"},
+  {vsn, "0.12.4"},
   {description, "Erlang MQTT Broker"},
   {modules, []},
   {registered, []},