diff --git a/biscuit/apps/chronos/migrations/0005_school_related.py b/biscuit/apps/chronos/migrations/0005_school_related.py
index d30597a55d45f3f8998675d4a0853c7309efaeac..90e8920fe24bf05f133a5808a537451afd3798a5 100644
--- a/biscuit/apps/chronos/migrations/0005_school_related.py
+++ b/biscuit/apps/chronos/migrations/0005_school_related.py
@@ -16,32 +16,32 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='lesson',
             name='school',
-            field=models.ForeignKey(default=biscuit.core.util.core_helpers.get_current_school, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
         ),
         migrations.AddField(
             model_name='lessonperiod',
             name='school',
-            field=models.ForeignKey(default=biscuit.core.util.core_helpers.get_current_school, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
         ),
         migrations.AddField(
             model_name='lessonsubstitution',
             name='school',
-            field=models.ForeignKey(default=biscuit.core.util.core_helpers.get_current_school, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
         ),
         migrations.AddField(
             model_name='room',
             name='school',
-            field=models.ForeignKey(default=biscuit.core.util.core_helpers.get_current_school, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
         ),
         migrations.AddField(
             model_name='subject',
             name='school',
-            field=models.ForeignKey(default=biscuit.core.util.core_helpers.get_current_school, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
         ),
         migrations.AddField(
             model_name='timeperiod',
             name='school',
-            field=models.ForeignKey(default=biscuit.core.util.core_helpers.get_current_school, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to='core.School'),
         ),
         migrations.AlterField(
             model_name='room',