diff --git a/apps/emqx_sn/src/emqx_sn.app.src b/apps/emqx_sn/src/emqx_sn.app.src
index ef0d24bf9..319137fed 100644
--- a/apps/emqx_sn/src/emqx_sn.app.src
+++ b/apps/emqx_sn/src/emqx_sn.app.src
@@ -1,6 +1,6 @@
 {application, emqx_sn,
  [{description, "EMQ X MQTT-SN Plugin"},
-  {vsn, "4.3.5"}, % strict semver, bump manually!
+  {vsn, "4.3.6"}, % strict semver, bump manually!
   {modules, []},
   {registered, []},
   {applications, [kernel,stdlib,esockd]},
diff --git a/apps/emqx_sn/src/emqx_sn.appup.src b/apps/emqx_sn/src/emqx_sn.appup.src
index 749a72956..6a4eb66d1 100644
--- a/apps/emqx_sn/src/emqx_sn.appup.src
+++ b/apps/emqx_sn/src/emqx_sn.appup.src
@@ -1,29 +1,25 @@
 %% -*- mode: erlang -*-
 {VSN,
   [
-   {"4.3.4",[
+   {<<"4\\.3\\.[4-5]">>,[
+       {load_module,emqx_sn_frame,brutal_purge,soft_purge,[]},
        {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
    ]},
-   {"4.3.3",[
-       {load_module,emqx_sn_registry,brutal_purge,soft_purge,[]},
-       {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
-    ]},
-   {"4.3.2", [
+   {<<"4.3.[2-3]">>,[
        {load_module,emqx_sn_registry,brutal_purge,soft_purge,[]},
+       {load_module,emqx_sn_frame,brutal_purge,soft_purge,[]},
        {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
     ]},
    {<<"4\\.3\\.[0-1]">>, [{restart_application,emqx_sn}]}
   ],
   [
-   {"4.3.4",[
+   {<<"4\\.3\\.[4-5]">>,[
+       {load_module,emqx_sn_frame,brutal_purge,soft_purge,[]},
        {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
    ]},
-   {"4.3.3",[
-       {load_module,emqx_sn_registry,brutal_purge,soft_purge,[]},
-       {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
-    ]},
-   {"4.3.2", [
+   {<<"4.3.[2-3]">>,[
        {load_module,emqx_sn_registry,brutal_purge,soft_purge,[]},
+       {load_module,emqx_sn_frame,brutal_purge,soft_purge,[]},
        {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
     ]},
    {<<"4\\.3\\.[0-1]">>, [{restart_application,emqx_sn}]}