diff --git a/ietf/doc/migrations/0032_auto_20200624_1332.py b/ietf/doc/migrations/0032_auto_20200624_1332.py
new file mode 100644
index 000000000..1dd656a31
--- /dev/null
+++ b/ietf/doc/migrations/0032_auto_20200624_1332.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.1.15 on 2020-06-24 13:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('doc', '0031_set_state_for_charters_of_replaced_groups'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='ballotpositiondocevent',
+            name='send_email',
+            field=models.BooleanField(default=None, null=True),
+        ),
+        migrations.AlterField(
+            model_name='consensusdocevent',
+            name='consensus',
+            field=models.BooleanField(default=None, null=True),
+        ),
+    ]
diff --git a/ietf/doc/models.py b/ietf/doc/models.py
index dc92d356d..ea3f80f72 100644
--- a/ietf/doc/models.py
+++ b/ietf/doc/models.py
@@ -1073,7 +1073,7 @@ class StateDocEvent(DocEvent):
     state = ForeignKey(State, blank=True, null=True)
 
 class ConsensusDocEvent(DocEvent):
-    consensus = models.NullBooleanField(default=None)
+    consensus = models.BooleanField(null=True, default=None)
 
 # IESG events
 class BallotType(models.Model):
@@ -1164,7 +1164,7 @@ class BallotPositionDocEvent(DocEvent):
     discuss_time = models.DateTimeField(help_text="Time discuss text was written", blank=True, null=True)
     comment = models.TextField(help_text="Optional comment", blank=True)
     comment_time = models.DateTimeField(help_text="Time optional comment was written", blank=True, null=True)
-    send_email = models.NullBooleanField(default=None)
+    send_email = models.BooleanField(null=True, default=None)
 
     @memoize
     def any_email_sent(self):
diff --git a/ietf/person/migrations/0012_auto_20200624_1332.py b/ietf/person/migrations/0012_auto_20200624_1332.py
new file mode 100644
index 000000000..bba2ff621
--- /dev/null
+++ b/ietf/person/migrations/0012_auto_20200624_1332.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.1.15 on 2020-06-24 13:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('person', '0011_auto_20200608_1212'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='historicalperson',
+            name='consent',
+            field=models.BooleanField(default=None, null=True, verbose_name='I hereby give my consent to the use of the personal details I have provided (photo, bio, name, email) within the IETF Datatracker'),
+        ),
+        migrations.AlterField(
+            model_name='person',
+            name='consent',
+            field=models.BooleanField(default=None, null=True, verbose_name='I hereby give my consent to the use of the personal details I have provided (photo, bio, name, email) within the IETF Datatracker'),
+        ),
+    ]
diff --git a/ietf/person/models.py b/ietf/person/models.py
index d3315ad5a..3d41e7fb7 100644
--- a/ietf/person/models.py
+++ b/ietf/person/models.py
@@ -48,7 +48,7 @@ class Person(models.Model):
     photo = models.ImageField(storage=NoLocationMigrationFileSystemStorage(), upload_to=settings.PHOTOS_DIRNAME, blank=True, default=None)
     photo_thumb = models.ImageField(storage=NoLocationMigrationFileSystemStorage(), upload_to=settings.PHOTOS_DIRNAME, blank=True, default=None)
     name_from_draft = models.CharField("Full Name (from submission)", null=True, max_length=255, editable=False, help_text="Name as found in a draft submission.")
-    consent = models.NullBooleanField("I hereby give my consent to the use of the personal details I have provided (photo, bio, name, email) within the IETF Datatracker", null=True, default=None)
+    consent = models.BooleanField("I hereby give my consent to the use of the personal details I have provided (photo, bio, name, email) within the IETF Datatracker", null=True, default=None)
 
     def __str__(self):
         return self.plain_name()
diff --git a/ietf/submit/migrations/0005_auto_20200624_1332.py b/ietf/submit/migrations/0005_auto_20200624_1332.py
new file mode 100644
index 000000000..74a5fa9fb
--- /dev/null
+++ b/ietf/submit/migrations/0005_auto_20200624_1332.py
@@ -0,0 +1,18 @@
+# Generated by Django 2.1.15 on 2020-06-24 13:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submit', '0004_rename_field_document2'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='submissioncheck',
+            name='passed',
+            field=models.BooleanField(default=False, null=True),
+        ),
+    ]
diff --git a/ietf/submit/models.py b/ietf/submit/models.py
index 5ec16f7ef..ae21aec92 100644
--- a/ietf/submit/models.py
+++ b/ietf/submit/models.py
@@ -78,7 +78,7 @@ class SubmissionCheck(models.Model):
     time = models.DateTimeField(default=datetime.datetime.now)
     submission = ForeignKey(Submission, related_name='checks')
     checker = models.CharField(max_length=256, blank=True)
-    passed = models.NullBooleanField(default=False)
+    passed = models.BooleanField(null=True, default=False)
     message = models.TextField(null=True, blank=True)
     errors = models.IntegerField(null=True, blank=True, default=None)
     warnings = models.IntegerField(null=True, blank=True, default=None)