diff --git a/jet/__init__.py b/jet/__init__.py
index 0e917f69..9cff1bc2 100644
--- a/jet/__init__.py
+++ b/jet/__init__.py
@@ -1 +1 @@
-VERSION = '1.0.7'
+VERSION = '1.1.0'
diff --git a/jet/dashboard/migrations/0002_user_charfield.py b/jet/dashboard/migrations/0002_user_charfield.py
new file mode 100644
index 00000000..4f3bfa00
--- /dev/null
+++ b/jet/dashboard/migrations/0002_user_charfield.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.2 on 2019-04-23 19:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dashboard', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='userdashboardmodule',
+            name='user',
+            field=models.CharField(max_length=255, verbose_name='user'),
+        ),
+    ]
diff --git a/jet/dashboard/models.py b/jet/dashboard/models.py
index cf43c30c..85c16508 100644
--- a/jet/dashboard/models.py
+++ b/jet/dashboard/models.py
@@ -3,6 +3,7 @@
 from django.db import models
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
+
 from jet.utils import LazyDateTimeEncoder
 
 
@@ -11,7 +12,7 @@ class UserDashboardModule(models.Model):
     title = models.CharField(verbose_name=_('Title'), max_length=255)
     module = models.CharField(verbose_name=_('module'), max_length=255)
     app_label = models.CharField(verbose_name=_('application name'), max_length=255, null=True, blank=True)
-    user = models.PositiveIntegerField(verbose_name=_('user'))
+    user = models.CharField(verbose_name=_('user'), max_length=255)
     column = models.PositiveIntegerField(verbose_name=_('column'))
     order = models.IntegerField(verbose_name=_('order'))
     settings = models.TextField(verbose_name=_('settings'), default='', blank=True)
diff --git a/jet/migrations/0003_user_charfield.py b/jet/migrations/0003_user_charfield.py
new file mode 100644
index 00000000..81192686
--- /dev/null
+++ b/jet/migrations/0003_user_charfield.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.2 on 2019-04-23 19:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('jet', '0002_delete_userdashboardmodule'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='bookmark',
+            name='user',
+            field=models.CharField(max_length=255, verbose_name='user'),
+        ),
+        migrations.AlterField(
+            model_name='pinnedapplication',
+            name='user',
+            field=models.CharField(max_length=255, verbose_name='user'),
+        ),
+    ]
diff --git a/jet/models.py b/jet/models.py
index 8fe97564..5cb36271 100644
--- a/jet/models.py
+++ b/jet/models.py
@@ -8,7 +8,7 @@
 class Bookmark(models.Model):
     url = models.URLField(verbose_name=_('URL'))
     title = models.CharField(verbose_name=_('title'), max_length=255)
-    user = models.PositiveIntegerField(verbose_name=_('user'))
+    user = models.CharField(verbose_name=_('user'), max_length=255)
     date_add = models.DateTimeField(verbose_name=_('date created'), default=timezone.now)
 
     class Meta:
@@ -23,7 +23,7 @@ def __str__(self):
 @python_2_unicode_compatible
 class PinnedApplication(models.Model):
     app_label = models.CharField(verbose_name=_('application name'), max_length=255)
-    user = models.PositiveIntegerField(verbose_name=_('user'))
+    user = models.CharField(verbose_name=_('user'), max_length=255)
     date_add = models.DateTimeField(verbose_name=_('date created'), default=timezone.now)
 
     class Meta:
diff --git a/jet/tests/test_fields.py b/jet/tests/test_fields.py
new file mode 100644
index 00000000..247d74ee
--- /dev/null
+++ b/jet/tests/test_fields.py
@@ -0,0 +1,13 @@
+from django.db.models import PositiveIntegerField
+from django.test import TestCase
+
+from jet.fields import get_user_field
+
+
+class UserFieldTest(TestCase):
+
+    def test_default_user_field(self):
+        default_cls = PositiveIntegerField
+        cls = get_user_field()
+        self.assertIsNotNone(cls)
+        self.assertEqual(cls, default_cls)