diff --git a/journals/migrations/0102_auto_20200930_0602.py b/journals/migrations/0102_auto_20200930_0602.py
new file mode 100644
index 0000000000000000000000000000000000000000..b053f894d400c3597f96a0c777bff5e38be1b840
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+++ b/journals/migrations/0102_auto_20200930_0602.py
@@ -0,0 +1,34 @@
+# Generated by Django 2.2.16 on 2020-09-30 04:02
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('journals', '0101_auto_20200929_1234'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='issue',
+            name='doi_label',
+            field=models.CharField(db_index=True, max_length=200, unique=True, validators=[django.core.validators.RegexValidator('^((SciPost|MigPol)[a-zA-Z]+)\\.\\w+(\\.[0-9]+)?$', 'Only expressions with regex ((SciPost|MigPol)[a-zA-Z]+)\\.\\w+(\\.[0-9]+)? are allowed.')]),
+        ),
+        migrations.AlterField(
+            model_name='journal',
+            name='doi_label',
+            field=models.CharField(db_index=True, max_length=200, unique=True, validators=[django.core.validators.RegexValidator('^(SciPost|MigPol)[a-zA-Z]+$', 'Only expressions with regex (SciPost|MigPol)[a-zA-Z]+ are allowed.')]),
+        ),
+        migrations.AlterField(
+            model_name='publication',
+            name='doi_label',
+            field=models.CharField(db_index=True, max_length=200, unique=True, validators=[django.core.validators.RegexValidator('^((SciPost|MigPol)[a-zA-Z]+)(\\.\\w+(\\.[0-9]+(\\.[0-9]{3,})?)?)?$', 'Only expressions with regex ((SciPost|MigPol)[a-zA-Z]+)(\\.\\w+(\\.[0-9]+(\\.[0-9]{3,})?)?)? are allowed.')]),
+        ),
+        migrations.AlterField(
+            model_name='volume',
+            name='doi_label',
+            field=models.CharField(db_index=True, max_length=200, unique=True, validators=[django.core.validators.RegexValidator('^((SciPost|MigPol)[a-zA-Z]+\\.\\w)$', 'Only expressions with regex ((SciPost|MigPol)[a-zA-Z]+\\.\\w) are allowed.')]),
+        ),
+    ]