[MDEP-407] added support for Maven 3.1-A1/Eclipse Aether 0.9-M2

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1479537 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index e6f15d1..869be05 100644
--- a/pom.xml
+++ b/pom.xml
@@ -176,7 +176,7 @@
     <dependency>
       <groupId>org.apache.maven.shared</groupId>
       <artifactId>maven-dependency-tree</artifactId>
-      <version>2.1-SNAPSHOT</version>
+      <version>2.1</version>
     </dependency>
     <dependency>
       <groupId>org.apache.maven.shared</groupId>