diff --git a/README.md b/README.md
index f83d8e51..f3aa95d0 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ Add following code block as a dependency
 <dependency>
     <groupId>com.databend</groupId>
     <artifactId>databend-jdbc</artifactId>
-    <version>0.2.8</version>
+    <version>0.2.9</version>
 </dependency>
 ```
 
diff --git a/databend-client/pom.xml b/databend-client/pom.xml
index a85da49b..38d91ac4 100644
--- a/databend-client/pom.xml
+++ b/databend-client/pom.xml
@@ -6,12 +6,12 @@
     <parent>
         <groupId>com.databend</groupId>
         <artifactId>databend-base</artifactId>
-        <version>0.2.8</version>
+        <version>0.2.9</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <groupId>com.databend</groupId>
     <artifactId>databend-client</artifactId>
-    <version>0.2.8</version>
+    <version>0.2.9</version>
 
     <properties>
         <!--suppress UnresolvedMavenProperty -->
diff --git a/databend-jdbc/pom.xml b/databend-jdbc/pom.xml
index 9407e9e9..f0362f4b 100644
--- a/databend-jdbc/pom.xml
+++ b/databend-jdbc/pom.xml
@@ -6,12 +6,12 @@
     <parent>
         <groupId>com.databend</groupId>
         <artifactId>databend-base</artifactId>
-        <version>0.2.8</version>
+        <version>0.2.9</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <groupId>com.databend</groupId>
     <artifactId>databend-jdbc</artifactId>
-    <version>0.2.8</version>
+    <version>0.2.9</version>
 
     <properties>
         <!--suppress UnresolvedMavenProperty -->
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>com.databend</groupId>
             <artifactId>databend-client</artifactId>
-            <version>0.2.8</version>
+            <version>0.2.9</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
diff --git a/pom.xml b/pom.xml
index 9e82f14f..d4d6a33e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
     </parent>
     <groupId>com.databend</groupId>
     <artifactId>databend-base</artifactId>
-    <version>0.2.8</version>
+    <version>0.2.9</version>
     <name>databend-base</name>
     <description>Databend</description>
     <packaging>pom</packaging>