diff --git a/apps/emqx_exproto/src/emqx_exproto.app.src b/apps/emqx_exproto/src/emqx_exproto.app.src
index 4a5db3094..ef4f7a8ff 100644
--- a/apps/emqx_exproto/src/emqx_exproto.app.src
+++ b/apps/emqx_exproto/src/emqx_exproto.app.src
@@ -1,6 +1,6 @@
 {application, emqx_exproto,
  [{description, "EMQ X Extension for Protocol"},
-  {vsn, "4.3.14"}, %% 4.3.3 is used by ee
+  {vsn, "4.3.15"}, %% 4.3.3 is used by ee
   {modules, []},
   {registered, []},
   {mod, {emqx_exproto_app, []}},