diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index 2f5639c03..fff2a2634 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -38,6 +38,7 @@
      {load_module, emqx_channel, brutal_purge, soft_purge, []},
      {load_module, emqx_session, brutal_purge, soft_purge, []},
      {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
      {load_module, emqx_os_mon, brutal_purge, soft_purge, []},
      {load_module, emqx_shared_sub, brutal_purge, soft_purge, []}
    ]},
@@ -47,6 +48,7 @@
      {load_module, emqx_session, brutal_purge, soft_purge, []},
      {load_module, emqx_congestion, brutal_purge, soft_purge, []},
      {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
      {load_module, emqx_alarm, brutal_purge, soft_purge, []}
    ]},
    {<<"4.2.5">>, [
@@ -54,6 +56,7 @@
      {load_module, emqx_session, brutal_purge, soft_purge, []},
      {load_module, emqx_congestion, brutal_purge, soft_purge, []},
      {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
      {load_module, emqx_alarm, brutal_purge, soft_purge, []}
    ]},
    {<<".*">>, []}
@@ -92,6 +95,7 @@
      {load_module, emqx_shared_sub, brutal_purge, soft_purge, []},
      {load_module, emqx_os_mon, brutal_purge, soft_purge, []},
      {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
      {load_module, emqx_channel, brutal_purge, soft_purge, []},
      {load_module, emqx_session, brutal_purge, soft_purge, []},
      {load_module, emqx_alarm, brutal_purge, soft_purge, []},
@@ -103,6 +107,7 @@
      {load_module, emqx_channel, brutal_purge, soft_purge, []},
      {load_module, emqx_congestion, brutal_purge, soft_purge, []},
      {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
      {load_module, emqx_alarm, brutal_purge, soft_purge, []},
      {load_module, emqx_session, brutal_purge, soft_purge, []}
    ]},
@@ -111,6 +116,7 @@
      {load_module, emqx_session, brutal_purge, soft_purge, []},
      {load_module, emqx_congestion, brutal_purge, soft_purge, []},
      {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
      {load_module, emqx_alarm, brutal_purge, soft_purge, []}
    ]},
    {<<".*">>, []}