diff -r f3875fbe206a -r 33fdb6f8164c server/python/django2/renkanmanager/migrations/0007_foreign_key_final.py
--- a/server/python/django2/renkanmanager/migrations/0007_foreign_key_final.py	Mon Jun 20 14:44:40 2016 +0200
+++ b/server/python/django2/renkanmanager/migrations/0007_foreign_key_final.py	Mon Jun 20 17:50:47 2016 +0200
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Generated by Django 1.9.4 on 2016-06-17 09:50
+# Generated by Django 1.9.4 on 2016-06-20 15:49
 from __future__ import unicode_literals
 
 from django.db import migrations, models
@@ -36,6 +36,11 @@
         ),
         migrations.AlterField(
             model_name='revision',
+            name='modification_date',
+            field=models.DateTimeField(),
+        ),
+        migrations.AlterField(
+            model_name='revision',
             name='parent_renkan',
             field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='revisions', to='renkanmanager.Renkan'),
         ),