diff --git a/elections/migrations/0020_alter_user_first_name.py b/elections/migrations/0020_alter_user_first_name.py
new file mode 100644
index 0000000..e9e298e
--- /dev/null
+++ b/elections/migrations/0020_alter_user_first_name.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.2 on 2021-04-07 11:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("elections", "0019_option_winner"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="user",
+            name="first_name",
+            field=models.CharField(
+                blank=True, max_length=150, verbose_name="first name"
+            ),
+        ),
+    ]
diff --git a/kadenios/settings/common.py b/kadenios/settings/common.py
index ca579f5..6e0051e 100644
--- a/kadenios/settings/common.py
+++ b/kadenios/settings/common.py
@@ -86,6 +86,8 @@ TEMPLATES = [
 
 WSGI_APPLICATION = "kadenios.wsgi.application"
 
+DEFAULT_AUTO_FIELD = "django.db.models.AutoField"
+
 DEFAULT_FROM_EMAIL = "Kadenios <klub-dev@ens.fr>"
 
 # #############################################################################
diff --git a/requirements.txt b/requirements.txt
index f55ae9d..117f3e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-django==2.2.*
-authens
+django==3.2.*
+authens>=0.1b2
 numpy
 networkx