diff --git a/docs/high_availability_guide.md b/docs/high_availability_guide.md
index 80322db8d..a296fe1b9 100644
--- a/docs/high_availability_guide.md
+++ b/docs/high_availability_guide.md
@@ -24,7 +24,7 @@ Load balancing aims to optimize all Kyuubi service units usage, maximize through
     <img style="zoom: 1.00" src="./imgs/ha.png" />
 </div>
 
-With Hive JDBC Drvier, a client can specify service discovery mode in JDBC connection string, i.e. `serviceDiscoveryMode=zooKeeper;` and set `zooKeeperNameSpace=kyuubiserver;`, then it can randomly pick one of the Kyuubi service uris from the specified ZooKeeper address in the `/kyuubiserver` path.
+With Hive JDBC Driver, a client can specify service discovery mode in JDBC connection string, i.e. `serviceDiscoveryMode=zooKeeper;` and set `zooKeeperNameSpace=kyuubiserver;`, then it can randomly pick one of the Kyuubi service uris from the specified ZooKeeper address in the `/kyuubiserver` path.
 
 When we set `spark.kyuubi.ha.enabled` to `true`, load balance mode is activated by default. Please make sure that you specify the correct ZooKeeper address via `spark.kyuubi.ha.zk.quorum` and `spark.kyuubi.ha.zk.client.port`.
 
diff --git a/kyuubi-server/pom.xml b/kyuubi-server/pom.xml
index e1b957baf..f1c9d1f42 100644
--- a/kyuubi-server/pom.xml
+++ b/kyuubi-server/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>kyuubi</artifactId>
         <groupId>yaooqinn</groupId>
-        <version>0.3.0-SNAPSHOT</version>
+        <version>0.4.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index ce420e1cf..f55ab90bd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
     <groupId>yaooqinn</groupId>
     <artifactId>kyuubi</artifactId>
     <name>Kyuubi Parent</name>
-    <version>0.3.0-SNAPSHOT</version>
+    <version>0.4.0-SNAPSHOT</version>
     <modules>
         <module>kyuubi-server</module>
     </modules>