diff --git a/auto-pipeline-annotations/pom.xml b/auto-pipeline-annotations/pom.xml
index d67f820..63d81ae 100644
--- a/auto-pipeline-annotations/pom.xml
+++ b/auto-pipeline-annotations/pom.xml
@@ -1,9 +1,10 @@
-<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>
 		<groupId>com.foldright.auto-pipeline</groupId>
 		<artifactId>auto-pipeline-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.3.0-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -25,7 +26,6 @@
 		<connection>scm:git:git@github.com:foldright/auto-pipeline.git</connection>
 		<developerConnection>scm:git:git@github.com:foldright/auto-pipeline.git</developerConnection>
 		<url>https://github.com/foldright/auto-pipeline</url>
-	  <tag>HEAD</tag>
-  </scm>
+	</scm>
 
 </project>
diff --git a/auto-pipeline-examples/pom.xml b/auto-pipeline-examples/pom.xml
index 69e0e3e..9097963 100644
--- a/auto-pipeline-examples/pom.xml
+++ b/auto-pipeline-examples/pom.xml
@@ -1,9 +1,10 @@
-<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>
 		<groupId>com.foldright.auto-pipeline</groupId>
 		<artifactId>auto-pipeline-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.3.0-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -25,8 +26,7 @@
 		<connection>scm:git:git@github.com:foldright/auto-pipeline.git</connection>
 		<developerConnection>scm:git:git@github.com:foldright/auto-pipeline.git</developerConnection>
 		<url>https://github.com/foldright/auto-pipeline</url>
-	  <tag>HEAD</tag>
-  </scm>
+	</scm>
 
 	<properties>
 		<!--
diff --git a/auto-pipeline-processor/pom.xml b/auto-pipeline-processor/pom.xml
index f19236c..9ce41b4 100644
--- a/auto-pipeline-processor/pom.xml
+++ b/auto-pipeline-processor/pom.xml
@@ -1,9 +1,10 @@
-<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>
 		<groupId>com.foldright.auto-pipeline</groupId>
 		<artifactId>auto-pipeline-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.3.0-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -25,8 +26,7 @@
 		<connection>scm:git:git@github.com:foldright/auto-pipeline.git</connection>
 		<developerConnection>scm:git:git@github.com:foldright/auto-pipeline.git</developerConnection>
 		<url>https://github.com/foldright/auto-pipeline</url>
-	  <tag>HEAD</tag>
-  </scm>
+	</scm>
 
 	<dependencies>
 		<dependency>
diff --git a/pom.xml b/pom.xml
index 0bdc2a8..2d5c01c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,9 +1,10 @@
-<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>
 
 	<groupId>com.foldright.auto-pipeline</groupId>
 	<artifactId>auto-pipeline-parent</artifactId>
-	<version>0.4.0-SNAPSHOT</version>
+	<version>0.3.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>${project.artifactId}</name>
 	<url>https://github.com/foldright/auto-pipeline</url>
@@ -28,8 +29,7 @@
 		<connection>scm:git:git@github.com:foldright/auto-pipeline.git</connection>
 		<developerConnection>scm:git:git@github.com:foldright/auto-pipeline.git</developerConnection>
 		<url>https://github.com/foldright/auto-pipeline</url>
-	  <tag>HEAD</tag>
-  </scm>
+	</scm>
 	<developers>
 		<developer>
 			<name>XuZebin</name>