diff --git a/apps/member/migrations/0007_auto_20210313_1235.py b/apps/member/migrations/0007_auto_20210313_1235.py
new file mode 100644
index 00000000..01ad2393
--- /dev/null
+++ b/apps/member/migrations/0007_auto_20210313_1235.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.2.19 on 2021-03-13 11:35
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('member', '0006_create_note_account_bde_membership'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='membership',
+            name='roles',
+            field=models.ManyToManyField(related_name='memberships', to='permission.Role', verbose_name='roles'),
+        ),
+        migrations.AlterField(
+            model_name='profile',
+            name='promotion',
+            field=models.PositiveSmallIntegerField(default=2021, help_text='Year of entry to the school (None if not ENS student)', null=True, verbose_name='promotion'),
+        ),
+    ]
diff --git a/apps/note/migrations/0005_auto_20210313_1235.py b/apps/note/migrations/0005_auto_20210313_1235.py
new file mode 100644
index 00000000..09696c38
--- /dev/null
+++ b/apps/note/migrations/0005_auto_20210313_1235.py
@@ -0,0 +1,19 @@
+# Generated by Django 2.2.19 on 2021-03-13 11:35
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('note', '0004_remove_null_tag_on_charfields'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='alias',
+            name='note',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='alias', to='note.Note'),
+        ),
+    ]
diff --git a/apps/treasury/migrations/0003_auto_20210313_1235.py b/apps/treasury/migrations/0003_auto_20210313_1235.py
new file mode 100644
index 00000000..17fd1f99
--- /dev/null
+++ b/apps/treasury/migrations/0003_auto_20210313_1235.py
@@ -0,0 +1,25 @@
+# Generated by Django 2.2.19 on 2021-03-13 11:35
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('treasury', '0002_invoice_remove_png_extension'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='product',
+            name='quantity',
+            field=models.FloatField(validators=[django.core.validators.MinValueValidator(0)], verbose_name='Quantity'),
+        ),
+        migrations.AlterField(
+            model_name='specialtransactionproxy',
+            name='remittance',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.PROTECT, related_name='transaction_proxies', to='treasury.Remittance', verbose_name='Remittance'),
+        ),
+    ]
diff --git a/apps/treasury/models.py b/apps/treasury/models.py
index b2b2596c..bf85dd26 100644
--- a/apps/treasury/models.py
+++ b/apps/treasury/models.py
@@ -5,6 +5,7 @@ from datetime import date
 
 from django.contrib.auth.models import User
 from django.core.exceptions import ValidationError
+from django.core.validators import MinValueValidator
 from django.db import models, transaction
 from django.db.models import Q
 from django.template.loader import render_to_string
@@ -131,12 +132,13 @@ class Product(models.Model):
         verbose_name=_("Designation"),
     )
 
-    quantity = models.PositiveIntegerField(
-        verbose_name=_("Quantity")
+    quantity = models.FloatField(
+        verbose_name=_("Quantity"),
+        validators=[MinValueValidator(0)],
     )
 
     amount = models.IntegerField(
-        verbose_name=_("Unit price")
+        verbose_name=_("Unit price"),
     )
 
     @property
diff --git a/apps/treasury/templates/treasury/invoice_sample.tex b/apps/treasury/templates/treasury/invoice_sample.tex
index b008aac3..f07f00f5 100644
--- a/apps/treasury/templates/treasury/invoice_sample.tex
+++ b/apps/treasury/templates/treasury/invoice_sample.tex
@@ -1,4 +1,5 @@
-{% load escape_tex %}
+{% load escape_tex i18n %}
+{% language fr %}
 \documentclass[a4paper,11pt]{article}
 
 \usepackage{fontspec}
@@ -176,3 +177,4 @@ TVA non applicable, article 293 B du CGI.
 \end{center}
 
 \end{document}
+{% endlanguage %}
diff --git a/apps/wei/migrations/0002_auto_20210313_1235.py b/apps/wei/migrations/0002_auto_20210313_1235.py
new file mode 100644
index 00000000..cb4dfbb2
--- /dev/null
+++ b/apps/wei/migrations/0002_auto_20210313_1235.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.2.19 on 2021-03-13 11:35
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wei', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='weiclub',
+            name='year',
+            field=models.PositiveIntegerField(default=2021, unique=True, verbose_name='year'),
+        ),
+        migrations.AlterField(
+            model_name='weiregistration',
+            name='information_json',
+            field=models.TextField(default='{}', help_text='Information about the registration (buses for old members, survey for the new members), encoded in JSON', verbose_name='registration information'),
+        ),
+    ]