diff --git a/measure/pom.xml b/measure/pom.xml
index 82d1bc2..7b1c9d0 100644
--- a/measure/pom.xml
+++ b/measure/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.griffin</groupId>
         <artifactId>griffin</artifactId>
-        <version>0.3.1-incubating-SNAPSHOT</version>
+        <version>0.4.0-incubating</version>
     </parent>
 
     <artifactId>measure</artifactId>
diff --git a/pom.xml b/pom.xml
index e153bbb..5718683 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
 
     <groupId>org.apache.griffin</groupId>
     <artifactId>griffin</artifactId>
-    <version>0.3.1-incubating-SNAPSHOT</version>
+    <version>0.4.0-incubating</version>
     <packaging>pom</packaging>
     <name>Apache Griffin ${project.version}</name>
     <url>http://griffin.incubator.apache.org</url>
@@ -82,7 +82,7 @@
         <connection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-griffin.git</connection>
         <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-griffin.git</developerConnection>
         <url>https://git-wip-us.apache.org/repos/asf?p=incubator-griffin.git;a=summary</url>
-        <tag>HEAD</tag>
+        <tag>griffin-0.4.0-incubating</tag>
     </scm>
 
     <distributionManagement>
diff --git a/service/pom.xml b/service/pom.xml
index 98a0319..30694e3 100644
--- a/service/pom.xml
+++ b/service/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.griffin</groupId>
         <artifactId>griffin</artifactId>
-        <version>0.3.1-incubating-SNAPSHOT</version>
+        <version>0.4.0-incubating</version>
     </parent>
 
     <artifactId>service</artifactId>
diff --git a/ui/pom.xml b/ui/pom.xml
index 93f0edb..c559437 100644
--- a/ui/pom.xml
+++ b/ui/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.griffin</groupId>
         <artifactId>griffin</artifactId>
-        <version>0.3.1-incubating-SNAPSHOT</version>
+        <version>0.4.0-incubating</version>
     </parent>
     <artifactId>ui</artifactId>
     <packaging>pom</packaging>