diff --git a/ippisite/db.sqlite3.REMOVED.git-id b/ippisite/db.sqlite3.REMOVED.git-id
index 4ef2ada73139f30bcb991f1c9c57e317b6cccb32..025323af340b13188630d06168a9125103e65a79 100644
--- a/ippisite/db.sqlite3.REMOVED.git-id
+++ b/ippisite/db.sqlite3.REMOVED.git-id
@@ -1 +1 @@
-9b8dd578a77223c74dea98cb7d82eeb5257d6b10
\ No newline at end of file
+11343746b831e499e2e50ab9bd7b1ee44f728fe6
\ No newline at end of file
diff --git a/ippisite/ippidb/migrations/0006_auto_20180727_0816.py b/ippisite/ippidb/migrations/0006_auto_20180727_0816.py
new file mode 100644
index 0000000000000000000000000000000000000000..0bc83482978888950e6f8ededc058a4677aa91d5
--- /dev/null
+++ b/ippisite/ippidb/migrations/0006_auto_20180727_0816.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2018-07-27 08:16
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ippidb', '0005_auto_20180727_0717'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='bibliography',
+            name='journal_name',
+            field=models.CharField(blank=True, max_length=50, null=True, verbose_name='Journal name'),
+        ),
+    ]
diff --git a/ippisite/ippidb/models.py b/ippisite/ippidb/models.py
index 1dbc0eb142d4a875cd1c17f2b239af8103e75d48..2f31d4d18e777ca5211f1e315ecf125749af9215 100644
--- a/ippisite/ippidb/models.py
+++ b/ippisite/ippidb/models.py
@@ -40,7 +40,7 @@ class Bibliography(AutoFillableModel):
         'Bibliographic type', max_length=2, choices=SOURCES, default='PM')
     id_source = models.CharField('Bibliographic ID', max_length=25)
     title = models.CharField('Title', max_length=300)
-    journal_name = models.CharField('Journal name', max_length=50, null=True)
+    journal_name = models.CharField('Journal name', max_length=50, null=True, blank=True)
     authors_list = models.CharField('Authors list', max_length=500)
     biblio_year = models.PositiveSmallIntegerField('Year')
     cytotox = models.BooleanField('Cytotoxicity data', default=False)