diff --git a/apps/content/migrations/0014_auto_20180215_1503.py b/apps/content/migrations/0014_auto_20180215_1503.py
new file mode 100644
index 00000000..8db0e4b3
--- /dev/null
+++ b/apps/content/migrations/0014_auto_20180215_1503.py
@@ -0,0 +1,17 @@
+# Generated by Django 2.0.2 on 2018-02-15 15:03
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('content', '0013_auto_20180212_0537'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='content',
+            options={'ordering': ('position', '-created_at'), 'verbose_name': 'Контент', 'verbose_name_plural': 'Контент'},
+        ),
+    ]
diff --git a/apps/course/migrations/0034_auto_20180215_1503.py b/apps/course/migrations/0034_auto_20180215_1503.py
new file mode 100644
index 00000000..8edac9d7
--- /dev/null
+++ b/apps/course/migrations/0034_auto_20180215_1503.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.0.2 on 2018-02-15 15:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course', '0033_auto_20180214_1346'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='course',
+            name='slug',
+            field=models.SlugField(allow_unicode=True, blank=True, max_length=100, null=True, unique=True),
+        ),
+    ]
diff --git a/apps/course/models.py b/apps/course/models.py
index a4820a7b..690a5b5e 100644
--- a/apps/course/models.py
+++ b/apps/course/models.py
@@ -41,7 +41,7 @@ class Course(BaseModel, DeactivatedMixin):
         (DENIED, 'Denied')
     )
     slug = models.SlugField(
-        allow_unicode=True, default=default_slug,
+        allow_unicode=True, null=True, blank=True,
         max_length=100, unique=True, db_index=True,
     )
     author = models.ForeignKey(