diff --git a/apps/emqx_sn/src/emqx_sn.app.src b/apps/emqx_sn/src/emqx_sn.app.src
index 68e0340f8..46c2df084 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, "4.3.7"}, % strict semver, bump manually!
+  {vsn, "4.3.8"}, % 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 bab8a2b7a..c87bbb0a1 100644
--- a/apps/emqx_sn/src/emqx_sn.appup.src
+++ b/apps/emqx_sn/src/emqx_sn.appup.src
@@ -1,6 +1,9 @@
 %% -*- mode: erlang -*-
 {VSN,
   [
+   {"4.3.7",[
+       {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
+   ]},
    {"4.3.6",[
        {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
    ]},
@@ -29,6 +32,9 @@
    {<<"4\\.3\\.[0-1]">>, [{restart_application,emqx_sn}]}
   ],
   [
+   {"4.3.7",[
+       {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
+   ]},
    {"4.3.6",[
        {load_module,emqx_sn_gateway,brutal_purge,soft_purge,[]}
    ]},