diff --git a/eav/migrations/0001_initial.py b/eav/migrations/0001_initial.py
index 7417deb..686440d 100644
--- a/eav/migrations/0001_initial.py
+++ b/eav/migrations/0001_initial.py
@@ -55,7 +55,7 @@ class Migration(migrations.Migration):
                 ('value_float', models.FloatField(blank=True, null=True)),
                 ('value_int', models.IntegerField(blank=True, null=True)),
                 ('value_date', models.DateTimeField(blank=True, null=True)),
-                ('value_bool', models.NullBooleanField()),
+                ('value_bool', models.BooleanField(null=True)),
                 ('generic_value_id', models.IntegerField(blank=True, null=True)),
                 ('created', models.DateTimeField(default=django.utils.timezone.now, verbose_name='Created')),
                 ('modified', models.DateTimeField(auto_now=True, verbose_name='Modified')),
diff --git a/eav/models.py b/eav/models.py
index bc2df78..234c39d 100644
--- a/eav/models.py
+++ b/eav/models.py
@@ -418,7 +418,7 @@ class Value(models.Model):
     value_decimal = models.DecimalField(blank = True, null = True, max_digits = 14, decimal_places = 2)
     value_int     = models.IntegerField(blank = True, null = True)
     value_date    = models.DateTimeField(blank = True, null = True)
-    value_bool    = models.NullBooleanField(blank = True, null = True)
+    value_bool    = models.BooleanField(null=True)
 
     value_enum  = models.ForeignKey(
         EnumValue,