diff -r 91d1fc2a3a14 -r 33b6843fdf8a src/main/java/de/uapcore/lightpit/entities/Version.java
--- a/src/main/java/de/uapcore/lightpit/entities/Version.java	Fri May 22 17:26:27 2020 +0200
+++ b/src/main/java/de/uapcore/lightpit/entities/Version.java	Fri May 22 21:23:57 2020 +0200
@@ -33,7 +33,7 @@
 public final class Version implements Comparable<Version> {
 
     private final int id;
-    private final Project project;
+    private Project project;
     private String name;
     /**
      * If we do not want versions to be ordered lexicographically we may specify an order.
@@ -50,6 +50,10 @@
         return id;
     }
 
+    public void setProject(Project project) {
+        this.project = project;
+    }
+
     public Project getProject() {
         return project;
     }