diff --git a/apps/participation/migrations/0003_auto_20200927_1309.py b/apps/participation/migrations/0003_auto_20200927_1309.py
new file mode 100644
index 0000000..a914976
--- /dev/null
+++ b/apps/participation/migrations/0003_auto_20200927_1309.py
@@ -0,0 +1,28 @@
+# Generated by Django 3.1.1 on 2020-09-27 11:09
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('participation', '0002_team_grant_animath_access_videos'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='video',
+            name='participation',
+        ),
+        migrations.AlterField(
+            model_name='participation',
+            name='solution',
+            field=models.ForeignKey(default=None, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='participation', to='participation.video', verbose_name='solution video'),
+        ),
+        migrations.AlterField(
+            model_name='participation',
+            name='synthesis',
+            field=models.ForeignKey(default=None, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='participation_synthesis', to='participation.video', verbose_name='synthesis video'),
+        ),
+    ]
diff --git a/apps/participation/migrations/0004_auto_20200927_1322.py b/apps/participation/migrations/0004_auto_20200927_1322.py
new file mode 100644
index 0000000..ca5f9ae
--- /dev/null
+++ b/apps/participation/migrations/0004_auto_20200927_1322.py
@@ -0,0 +1,24 @@
+# Generated by Django 3.1.1 on 2020-09-27 11:22
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('participation', '0003_auto_20200927_1309'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='participation',
+            name='solution',
+            field=models.OneToOneField(default=None, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='participation_solution', to='participation.video', verbose_name='solution video'),
+        ),
+        migrations.AlterField(
+            model_name='participation',
+            name='synthesis',
+            field=models.OneToOneField(default=None, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='participation_synthesis', to='participation.video', verbose_name='synthesis video'),
+        ),
+    ]