diff --git a/tests/modeltests/aggregation/models.py b/tests/modeltests/aggregation/models.py
index ba2ec3a212..9ed638ea80 100644
--- a/tests/modeltests/aggregation/models.py
+++ b/tests/modeltests/aggregation/models.py
@@ -15,7 +15,7 @@ class Author(models.Model):
         return self.name
 
 class Publisher(models.Model):
-    name = models.CharField(max_length=300)
+    name = models.CharField(max_length=255)
     num_awards = models.IntegerField()
 
     def __unicode__(self):
@@ -23,7 +23,7 @@ class Publisher(models.Model):
 
 class Book(models.Model):
     isbn = models.CharField(max_length=9)
-    name = models.CharField(max_length=300)
+    name = models.CharField(max_length=255)
     pages = models.IntegerField()
     rating = models.FloatField()
     price = models.DecimalField(decimal_places=2, max_digits=6)
@@ -36,7 +36,7 @@ class Book(models.Model):
         return self.name
 
 class Store(models.Model):
-    name = models.CharField(max_length=300)
+    name = models.CharField(max_length=255)
     books = models.ManyToManyField(Book)
     original_opening = models.DateTimeField()
     friday_night_closing = models.TimeField()
diff --git a/tests/regressiontests/aggregation_regress/models.py b/tests/regressiontests/aggregation_regress/models.py
index d1f1451e43..2a23b922b4 100644
--- a/tests/regressiontests/aggregation_regress/models.py
+++ b/tests/regressiontests/aggregation_regress/models.py
@@ -18,7 +18,7 @@ class Author(models.Model):
         return self.name
 
 class Publisher(models.Model):
-    name = models.CharField(max_length=300)
+    name = models.CharField(max_length=255)
     num_awards = models.IntegerField()
 
     def __unicode__(self):
@@ -26,7 +26,7 @@ class Publisher(models.Model):
 
 class Book(models.Model):
     isbn = models.CharField(max_length=9)
-    name = models.CharField(max_length=300)
+    name = models.CharField(max_length=255)
     pages = models.IntegerField()
     rating = models.FloatField()
     price = models.DecimalField(decimal_places=2, max_digits=6)
@@ -42,7 +42,7 @@ class Book(models.Model):
         return self.name
 
 class Store(models.Model):
-    name = models.CharField(max_length=300)
+    name = models.CharField(max_length=255)
     books = models.ManyToManyField(Book)
     original_opening = models.DateTimeField()
     friday_night_closing = models.TimeField()
diff --git a/tests/regressiontests/forms/models.py b/tests/regressiontests/forms/models.py
index 8a5e3124a2..472a39d35e 100644
--- a/tests/regressiontests/forms/models.py
+++ b/tests/regressiontests/forms/models.py
@@ -16,7 +16,7 @@ class BoundaryModel(models.Model):
     positive_integer = models.PositiveIntegerField(null=True, blank=True)
 
 class Defaults(models.Model):
-    name = models.CharField(max_length=256, default='class default value')
+    name = models.CharField(max_length=255, default='class default value')
     def_date = models.DateField(default = datetime.date(1980, 1, 1))
     value = models.IntegerField(default=42)
 
@@ -88,7 +88,7 @@ datetime.date(1969, 4, 4)
 
 >>> from django.forms import CharField
 >>> class ExcludingForm(ModelForm):
-...     name = CharField(max_length=256)
+...     name = CharField(max_length=255)
 ...     class Meta:
 ...         model = Defaults
 ...         exclude = ['name']
diff --git a/tests/regressiontests/max_lengths/models.py b/tests/regressiontests/max_lengths/models.py
index b4c43a220d..78eb30c49f 100644
--- a/tests/regressiontests/max_lengths/models.py
+++ b/tests/regressiontests/max_lengths/models.py
@@ -7,7 +7,7 @@ class PersonWithDefaultMaxLengths(models.Model):
     avatar = models.FilePathField()
 
 class PersonWithCustomMaxLengths(models.Model):
-    email = models.EmailField(max_length=384)
-    vcard = models.FileField(upload_to='/tmp', max_length=1024)
-    homepage = models.URLField(max_length=256)
-    avatar = models.FilePathField(max_length=512)
+    email = models.EmailField(max_length=250)
+    vcard = models.FileField(upload_to='/tmp', max_length=250)
+    homepage = models.URLField(max_length=250)
+    avatar = models.FilePathField(max_length=250)
diff --git a/tests/regressiontests/max_lengths/tests.py b/tests/regressiontests/max_lengths/tests.py
index fb62ce634a..0fb2f30e20 100644
--- a/tests/regressiontests/max_lengths/tests.py
+++ b/tests/regressiontests/max_lengths/tests.py
@@ -14,10 +14,10 @@ class MaxLengthArgumentsTests(TestCase):
         self.verify_max_length(PersonWithDefaultMaxLengths, 'avatar', 100)
 
     def test_custom_max_lengths(self):
-        self.verify_max_length(PersonWithCustomMaxLengths, 'email', 384)
-        self.verify_max_length(PersonWithCustomMaxLengths, 'vcard', 1024)
-        self.verify_max_length(PersonWithCustomMaxLengths, 'homepage', 256)
-        self.verify_max_length(PersonWithCustomMaxLengths, 'avatar', 512)
+        self.verify_max_length(PersonWithCustomMaxLengths, 'email', 250)
+        self.verify_max_length(PersonWithCustomMaxLengths, 'vcard', 250)
+        self.verify_max_length(PersonWithCustomMaxLengths, 'homepage', 250)
+        self.verify_max_length(PersonWithCustomMaxLengths, 'avatar', 250)
 
 class MaxLengthORMTests(TestCase):