diff --git a/k8s/helm_charts2/Chart.yaml b/k8s/helm_charts2/Chart.yaml
index b7b74e43b..fde239b3b 100644
--- a/k8s/helm_charts2/Chart.yaml
+++ b/k8s/helm_charts2/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v1
 description: SeaweedFS
 name: seaweedfs
-appVersion: "2.80"
-version: "2.80"
+appVersion: "2.81"
+version: "2.81"
diff --git a/other/java/client/pom.xml b/other/java/client/pom.xml
index 309c2b1ed..693258944 100644
--- a/other/java/client/pom.xml
+++ b/other/java/client/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.github.chrislusf</groupId>
     <artifactId>seaweedfs-client</artifactId>
-    <version>1.7.0</version>
+    <version>2.81</version>
 
     <parent>
         <groupId>org.sonatype.oss</groupId>
diff --git a/other/java/client/pom.xml.deploy b/other/java/client/pom.xml.deploy
index 8b96c9801..1cc960a7e 100644
--- a/other/java/client/pom.xml.deploy
+++ b/other/java/client/pom.xml.deploy
@@ -5,7 +5,7 @@
 
     <groupId>com.github.chrislusf</groupId>
     <artifactId>seaweedfs-client</artifactId>
-    <version>1.7.0</version>
+    <version>2.81</version>
 
     <parent>
         <groupId>org.sonatype.oss</groupId>
diff --git a/other/java/client/pom_debug.xml b/other/java/client/pom_debug.xml
index de120869d..abad31578 100644
--- a/other/java/client/pom_debug.xml
+++ b/other/java/client/pom_debug.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.github.chrislusf</groupId>
     <artifactId>seaweedfs-client</artifactId>
-    <version>1.7.0</version>
+    <version>2.81</version>
 
     <parent>
         <groupId>org.sonatype.oss</groupId>
diff --git a/other/java/examples/pom.xml b/other/java/examples/pom.xml
index 58e675977..6126c9075 100644
--- a/other/java/examples/pom.xml
+++ b/other/java/examples/pom.xml
@@ -11,13 +11,13 @@
         <dependency>
             <groupId>com.github.chrislusf</groupId>
             <artifactId>seaweedfs-client</artifactId>
-            <version>1.7.0</version>
+            <version>2.81</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>com.github.chrislusf</groupId>
             <artifactId>seaweedfs-hadoop2-client</artifactId>
-            <version>1.7.0</version>
+            <version>2.81</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
@@ -29,4 +29,4 @@
     </dependencies>
 
 
-</project>
\ No newline at end of file
+</project>
diff --git a/other/java/hdfs2/dependency-reduced-pom.xml b/other/java/hdfs2/dependency-reduced-pom.xml
index 72e5dbfe7..6bafe54d8 100644
--- a/other/java/hdfs2/dependency-reduced-pom.xml
+++ b/other/java/hdfs2/dependency-reduced-pom.xml
@@ -301,7 +301,7 @@
     </snapshotRepository>
   </distributionManagement>
   <properties>
-    <seaweedfs.client.version>1.7.0</seaweedfs.client.version>
+    <seaweedfs.client.version>2.81</seaweedfs.client.version>
     <hadoop.version>2.9.2</hadoop.version>
   </properties>
 </project>
diff --git a/other/java/hdfs2/pom.xml b/other/java/hdfs2/pom.xml
index aa4d8410c..f40005988 100644
--- a/other/java/hdfs2/pom.xml
+++ b/other/java/hdfs2/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <seaweedfs.client.version>1.7.0</seaweedfs.client.version>
+        <seaweedfs.client.version>2.81</seaweedfs.client.version>
         <hadoop.version>2.9.2</hadoop.version>
     </properties>
 
diff --git a/other/java/hdfs3/dependency-reduced-pom.xml b/other/java/hdfs3/dependency-reduced-pom.xml
index 4fe697fe9..072e71d78 100644
--- a/other/java/hdfs3/dependency-reduced-pom.xml
+++ b/other/java/hdfs3/dependency-reduced-pom.xml
@@ -309,7 +309,7 @@
     </snapshotRepository>
   </distributionManagement>
   <properties>
-    <seaweedfs.client.version>1.7.0</seaweedfs.client.version>
+    <seaweedfs.client.version>2.81</seaweedfs.client.version>
     <hadoop.version>3.1.1</hadoop.version>
   </properties>
 </project>
diff --git a/other/java/hdfs3/pom.xml b/other/java/hdfs3/pom.xml
index 78def4954..84c7dc924 100644
--- a/other/java/hdfs3/pom.xml
+++ b/other/java/hdfs3/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <seaweedfs.client.version>1.7.0</seaweedfs.client.version>
+        <seaweedfs.client.version>2.81</seaweedfs.client.version>
         <hadoop.version>3.1.1</hadoop.version>
     </properties>
 
diff --git a/weed/util/constants.go b/weed/util/constants.go
index 7b5c9ec66..ecc6fb84d 100644
--- a/weed/util/constants.go
+++ b/weed/util/constants.go
@@ -5,7 +5,7 @@ import (
 )
 
 var (
-	VERSION_NUMBER = fmt.Sprintf("%.02f", 2.80)
+	VERSION_NUMBER = fmt.Sprintf("%.02f", 2.81)
 	VERSION        = sizeLimit + " " + VERSION_NUMBER
 	COMMIT         = ""
 )