[MJARSIGNER-71] upgrade plexus-utils to 4.0.0
diff --git a/pom.xml b/pom.xml
index 04453d4..baca161 100644
--- a/pom.xml
+++ b/pom.xml
@@ -79,7 +79,7 @@
       <dependency>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-utils</artifactId>
-        <version>3.3.0</version>
+        <version>4.0.0</version>
       </dependency>
     </dependencies>
   </dependencyManagement>
@@ -119,6 +119,11 @@
       <version>3.3.3</version>
     </dependency>
     <dependency>
+      <groupId>org.codehaus.plexus</groupId>
+      <artifactId>plexus-xml</artifactId>
+      <version>3.0.0</version>
+    </dependency>
+    <dependency>
       <groupId>org.sonatype.plexus</groupId>
       <artifactId>plexus-sec-dispatcher</artifactId>
       <version>1.4</version>