diff --git a/mqtt-broker/pom.xml b/mqtt-broker/pom.xml
index 6e93eb65..a13f7d6c 100644
--- a/mqtt-broker/pom.xml
+++ b/mqtt-broker/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
         <groupId>io.streamnative.pulsar.handlers</groupId>
-        <version>4.2.0-SNAPSHOT</version>
+        <version>4.2.1.15</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pulsar-protocol-handler-mqtt</artifactId>
diff --git a/mqtt-common/pom.xml b/mqtt-common/pom.xml
index d1ef745e..e5732cda 100644
--- a/mqtt-common/pom.xml
+++ b/mqtt-common/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
         <groupId>io.streamnative.pulsar.handlers</groupId>
-        <version>4.2.0-SNAPSHOT</version>
+        <version>4.2.1.15</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pulsar-protocol-handler-mqtt-common</artifactId>
diff --git a/mqtt-proxy/pom.xml b/mqtt-proxy/pom.xml
index 80706090..6ecec55f 100644
--- a/mqtt-proxy/pom.xml
+++ b/mqtt-proxy/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
         <groupId>io.streamnative.pulsar.handlers</groupId>
-        <version>4.2.0-SNAPSHOT</version>
+        <version>4.2.1.15</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pulsar-protocol-handler-mqtt-proxy</artifactId>
diff --git a/pom.xml b/pom.xml
index e33cd345..f4a7a09b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <groupId>io.streamnative.pulsar.handlers</groupId>
     <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
-    <version>4.2.0-SNAPSHOT</version>
+    <version>4.2.1.15</version>
     <name>StreamNative :: Pulsar Protocol Handler :: MoP Parent</name>
     <description>Parent for MQTT on Pulsar implemented using Pulsar Protocol Handler.</description>
 
@@ -51,8 +51,8 @@
         <mockito.version>2.22.0</mockito.version>
         <testng.version>6.14.3</testng.version>
         <awaitility.version>4.0.2</awaitility.version>
-        <pulsar.version>4.2.0-SNAPSHOT</pulsar.version>
-        <sn.bom.version>4.2.0-SNAPSHOT</sn.bom.version>
+        <pulsar.version>4.2.1.15</pulsar.version>
+        <sn.bom.version>4.2.1.15</sn.bom.version>
         <log4j2.version>2.18.0</log4j2.version>
         <fusesource.client.version>1.16</fusesource.client.version>
         <hivemq.mqtt.client.version>1.2.2</hivemq.mqtt.client.version>
diff --git a/tests/pom.xml b/tests/pom.xml
index 62b6231f..df7d00d6 100644
--- a/tests/pom.xml
+++ b/tests/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>pulsar-protocol-handler-mqtt-parent</artifactId>
         <groupId>io.streamnative.pulsar.handlers</groupId>
-        <version>4.2.0-SNAPSHOT</version>
+        <version>4.2.1.15</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pulsar-protocol-handler-mqtt-tests</artifactId>