diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index 932a30755..c7cdd3e60 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -110,7 +110,7 @@
    {<<".*">>,[]}],
   [{"4.4.3",
     [{load_module,emqx_packet,brutal_purge,soft_purge,[]},
-     {add_module,emqx_calendar},
+     {delete_module,emqx_calendar},
      {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
      {load_module,emqx_session,brutal_purge,soft_purge,[]},
      {load_module,emqx_misc,brutal_purge,soft_purge,[]},
@@ -127,7 +127,7 @@
      {load_module,emqx_relup}]},
    {"4.4.2",
     [{load_module,emqx_packet,brutal_purge,soft_purge,[]},
-     {add_module,emqx_calendar},
+     {delete_module,emqx_calendar},
      {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
      {load_module,emqx_session,brutal_purge,soft_purge,[]},
      {load_module,emqx_misc,brutal_purge,soft_purge,[]},
@@ -147,7 +147,7 @@
      {load_module,emqx_app,brutal_purge,soft_purge,[]},
      {load_module,emqx_relup}]},
    {"4.4.1",
-    [{add_module,emqx_calendar},
+    [{delete_module,emqx_calendar},
      {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
      {load_module,emqx_packet,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
@@ -178,7 +178,7 @@
      {delete_module,emqx_relup}]},
    {"4.4.0",
     [{load_module,emqx_packet,brutal_purge,soft_purge,[]},
-     {add_module,emqx_calendar},
+     {delete_module,emqx_calendar},
      {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
      {load_module,emqx_access_rule,brutal_purge,soft_purge,[]},
      {load_module,emqx_alarm_handler,brutal_purge,soft_purge,[]},