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--- a/src/main/java/net/timbusproject/dpes/alternative/kb/VersionedPackage.java
+++ b/src/main/java/net/timbusproject/dpes/alternative/kb/VersionedPackage.java
@@ -18,10 +18,13 @@
 
 package net.timbusproject.dpes.alternative.kb;
 
+import java.io.Serializable;
+
 /**
  * @author Rudolf Mayer
  */
-public class VersionedPackage {
+public class VersionedPackage implements Serializable {
+    private static final long serialVersionUID = 1L;
 
     private String name;