diff --git a/pom.xml b/pom.xml
index e58aecb..4ecfc53 100644
--- a/pom.xml
+++ b/pom.xml
@@ -81,6 +81,11 @@
             <artifactId>google-collections</artifactId>
             <version>1.0</version>
         </dependency>
+        <dependency>
+            <groupId>mx4j</groupId>
+            <artifactId>mx4j</artifactId>
+            <version>3.0.2</version>
+        </dependency>
     </dependencies>
     <build>
         <plugins>