move plexus utils to test scope
diff --git a/pom.xml b/pom.xml
index 91507fe..99bd73f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -100,6 +100,7 @@
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
       <version>4.0.0</version>
+      <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>