diff --git a/agent/pom.xml b/agent/pom.xml
index c7a9a0add..e979b3b7d 100644
--- a/agent/pom.xml
+++ b/agent/pom.xml
@@ -1,12 +1,10 @@
 <?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <artifactId>arthas-agent</artifactId>
     <name>arthas-agent</name>
diff --git a/client/pom.xml b/client/pom.xml
index a68a48ad3..422040c13 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -1,11 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>arthas-all</artifactId>
         <groupId>com.taobao.arthas</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/core/pom.xml b/core/pom.xml
index 4995ed6ee..140279697 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -1,12 +1,10 @@
 <?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <artifactId>arthas-core</artifactId>
     <name>arthas-core</name>
diff --git a/packaging/pom.xml b/packaging/pom.xml
index cc7e0f5bc..4276536d7 100644
--- a/packaging/pom.xml
+++ b/packaging/pom.xml
@@ -1,12 +1,10 @@
 <?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <artifactId>arthas-packaging</artifactId>
     <name>arthas-packaging</name>
diff --git a/pom.xml b/pom.xml
index 99acbbe55..67445d740 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
@@ -48,7 +47,7 @@
 
     <groupId>com.taobao.arthas</groupId>
     <artifactId>arthas-all</artifactId>
-    <version>3.0.0-SNAPSHOT</version>
+    <version>3.0.0-RC</version>
     <packaging>pom</packaging>
 
     <name>arthas-all</name>
diff --git a/site/pom.xml b/site/pom.xml
index 6d7d9cdc1..7ec4192bb 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -1,13 +1,10 @@
 <?xml version="1.0"?>
-<project
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <artifactId>arthas-site</artifactId>
     <name>arthas-site</name>
diff --git a/spy/pom.xml b/spy/pom.xml
index 260c6ff48..055ea8105 100644
--- a/spy/pom.xml
+++ b/spy/pom.xml
@@ -1,12 +1,10 @@
 <?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <artifactId>arthas-spy</artifactId>
     <name>arthas-spy</name>
diff --git a/testcase/pom.xml b/testcase/pom.xml
index a0d59df1d..cd43eafcc 100644
--- a/testcase/pom.xml
+++ b/testcase/pom.xml
@@ -1,12 +1,10 @@
 <?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-RC</version>
     </parent>
     <artifactId>arthas-testcase</artifactId>
     <name>arthas-testcase</name>