diff --git a/apps/emqx_authz/src/emqx_authz.app.src b/apps/emqx_authz/src/emqx_authz.app.src
index e9654557e..29a035ab3 100644
--- a/apps/emqx_authz/src/emqx_authz.app.src
+++ b/apps/emqx_authz/src/emqx_authz.app.src
@@ -1,7 +1,7 @@
 %% -*- mode: erlang -*-
 {application, emqx_authz, [
     {description, "An OTP application"},
-    {vsn, "0.1.23"},
+    {vsn, "0.1.24"},
     {registered, []},
     {mod, {emqx_authz_app, []}},
     {applications, [
diff --git a/apps/emqx_mysql/src/emqx_mysql.app.src b/apps/emqx_mysql/src/emqx_mysql.app.src
index c0f8ec7e7..df4846356 100644
--- a/apps/emqx_mysql/src/emqx_mysql.app.src
+++ b/apps/emqx_mysql/src/emqx_mysql.app.src
@@ -1,6 +1,6 @@
 {application, emqx_mysql, [
     {description, "EMQX MySQL Database Connector"},
-    {vsn, "0.1.0"},
+    {vsn, "0.1.1"},
     {registered, []},
     {applications, [
         kernel,
diff --git a/apps/emqx_rule_engine/src/emqx_rule_engine.app.src b/apps/emqx_rule_engine/src/emqx_rule_engine.app.src
index ccd436d86..f0388631f 100644
--- a/apps/emqx_rule_engine/src/emqx_rule_engine.app.src
+++ b/apps/emqx_rule_engine/src/emqx_rule_engine.app.src
@@ -2,7 +2,7 @@
 {application, emqx_rule_engine, [
     {description, "EMQX Rule Engine"},
     % strict semver, bump manually!
-    {vsn, "5.0.20"},
+    {vsn, "5.0.21"},
     {modules, []},
     {registered, [emqx_rule_engine_sup, emqx_rule_engine]},
     {applications, [kernel, stdlib, rulesql, getopt, emqx_ctl, uuid]},