diff --git a/pom.xml b/pom.xml
index 6f1dbd7..ee438a0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,7 +73,7 @@
       <plugin>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-maven-plugin</artifactId>
-        <version>1.3.3</version>
+        <version>1.3.5</version>
         <executions>
           <execution>
             <goals>
@@ -127,9 +127,11 @@
       </plugin>
       <plugin>
         <artifactId>maven-changelog-plugin</artifactId>
+        <version>2.1</version>
       </plugin>
       <plugin>
         <artifactId>maven-jxr-plugin</artifactId>
+        <version>2.1</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>