diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index b10c14a9c..d162cc15d 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -3,6 +3,8 @@
  [
    {"4.3.0", [
      {load_module, emqx_logger_jsonfmt, brutal_purge, soft_purge, []},
+     {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_frame, brutal_purge, soft_purge, []},
      {load_module, emqx_metrics, brutal_purge, soft_purge, []},
      {apply, {emqx_metrics, upgrade_retained_delayed_counter_type, []}}
    ]},
@@ -11,6 +13,8 @@
  [
    {"4.3.0", [
      {load_module, emqx_logger_jsonfmt, brutal_purge, soft_purge, []},
+     {load_module, emqx_connection, brutal_purge, soft_purge, []},
+     {load_module, emqx_frame, brutal_purge, soft_purge, []},
      %% Just load the module. We don't need to change the 'messages.retained'
      %% and 'messages.retained' counter type.
      {load_module, emqx_metrics, brutal_purge, soft_purge, []}