[MPOM-150] Upgrade plexus to 1.7.1.

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1774827 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/maven/pom.xml b/maven/pom.xml
index df4290c..c109178 100644
--- a/maven/pom.xml
+++ b/maven/pom.xml
@@ -865,7 +865,7 @@
       <dependency>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-component-annotations</artifactId>
-        <version>1.7</version>
+        <version>1.7.1</version>
       </dependency>
       <dependency>
         <groupId>org.apache.maven.plugin-tools</groupId>