diff --git a/apps/emqx_retainer/src/emqx_retainer.app.src b/apps/emqx_retainer/src/emqx_retainer.app.src
index c3ffb9f90..c5ca7599d 100644
--- a/apps/emqx_retainer/src/emqx_retainer.app.src
+++ b/apps/emqx_retainer/src/emqx_retainer.app.src
@@ -1,6 +1,6 @@
 {application, emqx_retainer,
  [{description, "EMQ X Retainer"},
-  {vsn, "4.3.1"}, % strict semver, bump manually!
+  {vsn, "4.3.2"}, % strict semver, bump manually!
   {modules, []},
   {registered, [emqx_retainer_sup]},
   {applications, [kernel,stdlib]},
diff --git a/apps/emqx_retainer/src/emqx_retainer.appup.src b/apps/emqx_retainer/src/emqx_retainer.appup.src
index a17e6ee2f..19e8e835f 100644
--- a/apps/emqx_retainer/src/emqx_retainer.appup.src
+++ b/apps/emqx_retainer/src/emqx_retainer.appup.src
@@ -1,13 +1,13 @@
 %% -*-: erlang -*-
 {VSN,
   [
-    {"4.3.0", [
+    {<<"4\\.3\\.[0-1]+">>, [
       {load_module, emqx_retainer, brutal_purge, soft_purge, []}
     ]},
     {<<".*">>, []}
   ],
   [
-    {"4.3.0", [
+    {<<"4\\.3\\.[0-1]+">>, [
       {load_module, emqx_retainer, brutal_purge, soft_purge, []}
     ]},
     {<<".*">>, []}