diff --git a/pom.xml b/pom.xml
index e3977ed..172052d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,26 +49,30 @@
     </site>
   </distributionManagement>
 
+  <properties>
+    <maven.version>2.2.1</maven.version>
+  </properties>
+
   <dependencies>
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-artifact</artifactId>
-      <version>2.0.8</version>
+      <version>${maven.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-model</artifactId>
-      <version>2.0.8</version>
+      <version>${maven.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-project</artifactId>
-      <version>2.0.8</version>
+      <version>${maven.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-plugin-api</artifactId>
-      <version>2.0.8</version>
+      <version>${maven.version}</version>
     </dependency>
     <dependency>
       <groupId>org.apache.maven.shared</groupId>