diff --git a/src/backend/core/migrations/0019_alter_user_language_default_to_null.py b/src/backend/core/migrations/0019_alter_user_language_default_to_null.py
new file mode 100644
index 00000000..94b50a88
--- /dev/null
+++ b/src/backend/core/migrations/0019_alter_user_language_default_to_null.py
@@ -0,0 +1,36 @@
+# Generated by Django 5.1.5 on 2025-03-04 12:23
+from django.db import migrations, models
+
+import core.models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("core", "0018_update_blank_title"),
+    ]
+
+    operations = [
+        migrations.AlterModelManagers(
+            name="user",
+            managers=[
+                ("objects", core.models.UserManager()),
+            ],
+        ),
+        migrations.AlterField(
+            model_name="user",
+            name="language",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("en-us", "English"),
+                    ("fr-fr", "Français"),
+                    ("de-de", "Deutsch"),
+                ],
+                default=None,
+                help_text="The language in which the user wants to see the interface.",
+                max_length=10,
+                null=True,
+                verbose_name="language",
+            ),
+        ),
+    ]
diff --git a/src/backend/core/models.py b/src/backend/core/models.py
index 9cd1e2bf..0e355879 100644
--- a/src/backend/core/models.py
+++ b/src/backend/core/models.py
@@ -194,9 +194,11 @@ class User(AbstractBaseUser, BaseModel, auth_models.PermissionsMixin):
     language = models.CharField(
         max_length=10,
         choices=lazy(lambda: settings.LANGUAGES, tuple)(),
-        default=settings.LANGUAGE_CODE,
+        default=None,
         verbose_name=_("language"),
         help_text=_("The language in which the user wants to see the interface."),
+        null=True,
+        blank=True,
     )
     timezone = TimeZoneField(
         choices_display="WITH_GMT_OFFSET",