json date format for pubdate (currently default is yyyy-mm-dd)
diff --git a/pom.xml b/pom.xml
index 27a2667..3017972 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,6 +42,11 @@
           <version>4.11</version>
           <scope>test</scope>
       </dependency>
+      <dependency>
+          <groupId>joda-time</groupId>
+          <artifactId>joda-time</artifactId>
+          <version>2.2</version>
+      </dependency>
   </dependencies>
   <build>
     <sourceDirectory>${basedir}/src/main/java</sourceDirectory>