diff --git a/CHANGELOG.md b/CHANGELOG.md
index 852da905..62c41496 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@
 
 ### Changed
 
-- nothing changed
+- Set a default max length to 1024 for URLFields
 
 ### Removed
 
diff --git a/concrete_datastore/concrete/models.py b/concrete_datastore/concrete/models.py
index 0e587948..26274170 100644
--- a/concrete_datastore/concrete/models.py
+++ b/concrete_datastore/concrete/models.py
@@ -984,6 +984,8 @@ class Meta:
             args['null'] = False
             args.setdefault('blank', True)
             args.setdefault('default', "")
+        elif field.f_type == 'URLField':
+            args.setdefault('max_length', settings.URL_FIELD_MAX_LENGTH)
         elif field.f_type in ('IntegerField', 'BigIntegerField'):
             args['null'] = False
             args.setdefault('blank', True)
diff --git a/concrete_datastore/settings/base.py b/concrete_datastore/settings/base.py
index 9aebbf52..b5998e6c 100644
--- a/concrete_datastore/settings/base.py
+++ b/concrete_datastore/settings/base.py
@@ -656,3 +656,5 @@
 #: The TOTP issuer used for the QR-Code. Leave to None to use the same value
 #: as PLATFORM_NAME
 OTP_TOTP_ISSUER = None
+
+URL_FIELD_MAX_LENGTH = 1024
diff --git a/tests/datamodel/unittest-datamodel.yaml b/tests/datamodel/unittest-datamodel.yaml
index 10a73c25..5fa1cb8d 100644
--- a/tests/datamodel/unittest-datamodel.yaml
+++ b/tests/datamodel/unittest-datamodel.yaml
@@ -204,6 +204,11 @@ manifest:
             datatype: file
             attributes: {}
             description: Photo of the project
+          - name: storage_url
+            datatype: url
+            attributes:
+              allow_empty: true
+            description: Url of the project storgae
         uid: 7158d6af-8c79-4613-82cb-c1b0b20400ab
       - name: Category
         description: Category
diff --git a/tests/migrations/0013_project_storage_url.py b/tests/migrations/0013_project_storage_url.py
new file mode 100644
index 00000000..b6312205
--- /dev/null
+++ b/tests/migrations/0013_project_storage_url.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.19 on 2023-06-19 13:53
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('concrete', '0012_auto_20221115_0644'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='project',
+            name='storage_url',
+            field=models.URLField(blank=True, max_length=1024, null=True),
+        ),
+    ]
diff --git a/tests/test_fields_validation.py b/tests/test_fields_validation.py
new file mode 100644
index 00000000..610e35c6
--- /dev/null
+++ b/tests/test_fields_validation.py
@@ -0,0 +1,23 @@
+from django.test import TestCase
+from concrete_datastore.concrete.models import Project
+from django.db import DataError
+
+
+class UrlValidationTestCase(TestCase):
+    #: URL length validator is 1024
+    def test_nominal_case(self):
+        url = "http://domain.ext/" + "a/" * 491
+        self.assertEqual(len(url), 1000)
+        # 1000 < 1024
+        self.assertEqual(Project.objects.count(), 0)
+        project = Project.objects.create(storage_url=url)
+        self.assertEqual(Project.objects.count(), 1)
+        self.assertEqual(len(project.storage_url), 1000)
+
+    def test_validation_error(self):
+        url = "http://domain.ext/" + "a/" * 991
+        self.assertEqual(len(url), 2000)
+        # 2000 > 1024
+        self.assertEqual(Project.objects.count(), 0)
+        with self.assertRaises(DataError):
+            Project.objects.create(storage_url=url)