[maven-release-plugin] prepare release 0.3.0
diff --git a/pom.xml b/pom.xml
index e187cd8..c8aaf6c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     </prerequisites>
     <groupId>org.purl.wf4ever.robundle</groupId>
     <artifactId>robundle</artifactId>
-    <version>0.3.0-SNAPSHOT</version>
+    <version>0.3.0</version>
     <name>RO Bundle API</name>
     <description>API for dealing with RO Bundles</description>
     <properties>
@@ -81,7 +81,8 @@
         <connection>scm:git:git://github.com/wf4ever/robundle.git</connection>
         <developerConnection>scm:git:ssh://git@github.com/wf4ever/robundle.git</developerConnection>
         <url>https://github.com/wf4ever/robundle/</url>
-    </scm>
+      <tag>0.3.0</tag>
+  </scm>
     <licenses>
         <license>
             <name>MIT license</name>