killbill-aplcache

diff --git a/invoice/pom.xml b/invoice/pom.xml
index 8c939ca..63a2fba 100644
--- a/invoice/pom.xml
+++ b/invoice/pom.xml
@@ -94,6 +94,11 @@
             <artifactId>guice</artifactId>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
+        
     </dependencies>
     <build>
     </build>