diff --git a/django/contrib/auth/tests/context_processors.py b/django/contrib/auth/tests/context_processors.py
index 31a56f406c..6c824e831b 100644
--- a/django/contrib/auth/tests/context_processors.py
+++ b/django/contrib/auth/tests/context_processors.py
@@ -13,6 +13,7 @@ from django.test.utils import override_settings
             os.path.join(os.path.dirname(__file__), 'templates'),
         ),
     USE_TZ=False,                           # required for loading the fixture
+    PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
 )
 class AuthContextProcessorTests(TestCase):
     """
diff --git a/django/contrib/auth/tests/forms.py b/django/contrib/auth/tests/forms.py
index 3ad2afd592..fd2b526f17 100644
--- a/django/contrib/auth/tests/forms.py
+++ b/django/contrib/auth/tests/forms.py
@@ -11,7 +11,7 @@ from django.utils import translation
 from django.utils.translation import ugettext as _
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class UserCreationFormTest(TestCase):
 
     fixtures = ['authtestdata.json']
@@ -77,7 +77,7 @@ class UserCreationFormTest(TestCase):
         self.assertEqual(repr(u), '<User: jsmith@example.com>')
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AuthenticationFormTest(TestCase):
 
     fixtures = ['authtestdata.json']
@@ -129,7 +129,7 @@ class AuthenticationFormTest(TestCase):
         self.assertEqual(form.non_field_errors(), [])
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SetPasswordFormTest(TestCase):
 
     fixtures = ['authtestdata.json']
@@ -156,7 +156,7 @@ class SetPasswordFormTest(TestCase):
         self.assertTrue(form.is_valid())
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class PasswordChangeFormTest(TestCase):
 
     fixtures = ['authtestdata.json']
@@ -204,7 +204,7 @@ class PasswordChangeFormTest(TestCase):
                          ['old_password', 'new_password1', 'new_password2'])
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class UserChangeFormTest(TestCase):
 
     fixtures = ['authtestdata.json']
@@ -251,7 +251,7 @@ class UserChangeFormTest(TestCase):
         form.as_table()
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class PasswordResetFormTest(TestCase):
 
     fixtures = ['authtestdata.json']
diff --git a/django/contrib/auth/tests/signals.py b/django/contrib/auth/tests/signals.py
index 7730ab0952..51f14d35f0 100644
--- a/django/contrib/auth/tests/signals.py
+++ b/django/contrib/auth/tests/signals.py
@@ -3,7 +3,7 @@ from django.test.utils import override_settings
 from django.contrib.auth import signals
 
 
-@override_settings(USE_TZ=False)
+@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SignalTestCase(TestCase):
     urls = 'django.contrib.auth.tests.urls'
     fixtures = ['authtestdata.json']
diff --git a/django/contrib/auth/tests/views.py b/django/contrib/auth/tests/views.py
index ea550f955d..a9754c5bad 100644
--- a/django/contrib/auth/tests/views.py
+++ b/django/contrib/auth/tests/views.py
@@ -27,6 +27,7 @@ from django.contrib.auth.forms import (AuthenticationForm, PasswordChangeForm,
         os.path.join(os.path.dirname(__file__), 'templates'),
     ),
     USE_TZ=False,
+    PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
 )
 class AuthViewsTestCase(TestCase):
     """
diff --git a/tests/modeltests/test_client/models.py b/tests/modeltests/test_client/models.py
index 02666cef52..cfbb4fba7a 100644
--- a/tests/modeltests/test_client/models.py
+++ b/tests/modeltests/test_client/models.py
@@ -25,10 +25,11 @@ from __future__ import absolute_import
 from django.conf import settings
 from django.core import mail
 from django.test import Client, TestCase, RequestFactory
+from django.test.utils import override_settings
 
 from .views import get_view
 
-
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class ClientTest(TestCase):
     fixtures = ['testdata.json']
 
diff --git a/tests/modeltests/timezones/tests.py b/tests/modeltests/timezones/tests.py
index 90bc1f3a18..75ee888a7e 100644
--- a/tests/modeltests/timezones/tests.py
+++ b/tests/modeltests/timezones/tests.py
@@ -934,7 +934,8 @@ class NewFormsTests(TestCase):
         self.assertEqual(e.dt, datetime.datetime(2011, 9, 1, 10, 20, 30, tzinfo=UTC))
 
 
-@override_settings(DATETIME_FORMAT='c', TIME_ZONE='Africa/Nairobi', USE_L10N=False, USE_TZ=True)
+@override_settings(DATETIME_FORMAT='c', TIME_ZONE='Africa/Nairobi', USE_L10N=False, USE_TZ=True,
+                  PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminTests(TestCase):
 
     urls = 'modeltests.timezones.urls'
diff --git a/tests/regressiontests/admin_custom_urls/tests.py b/tests/regressiontests/admin_custom_urls/tests.py
index 13d065a910..6197827793 100644
--- a/tests/regressiontests/admin_custom_urls/tests.py
+++ b/tests/regressiontests/admin_custom_urls/tests.py
@@ -3,10 +3,12 @@ from __future__ import absolute_import
 from django.core.urlresolvers import reverse
 from django.template.response import TemplateResponse
 from django.test import TestCase
+from django.test.utils import override_settings
 
 from .models import Action
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminCustomUrlsTest(TestCase):
     fixtures = ['users.json', 'actions.json']
 
diff --git a/tests/regressiontests/admin_inlines/tests.py b/tests/regressiontests/admin_inlines/tests.py
index 8b620cc57d..d6d02edb91 100644
--- a/tests/regressiontests/admin_inlines/tests.py
+++ b/tests/regressiontests/admin_inlines/tests.py
@@ -5,6 +5,7 @@ from django.contrib.admin.helpers import InlineAdminForm
 from django.contrib.auth.models import User, Permission
 from django.contrib.contenttypes.models import ContentType
 from django.test import TestCase
+from django.test.utils import override_settings
 
 # local test models
 from .admin import InnerInline
@@ -13,6 +14,7 @@ from .models import (Holder, Inner, Holder2, Inner2, Holder3, Inner3, Person,
     ProfileCollection)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class TestInline(TestCase):
     urls = "regressiontests.admin_inlines.urls"
     fixtures = ['admin-views-users.xml']
@@ -145,6 +147,7 @@ class TestInline(TestCase):
                 '<input id="id_-2-0-name" type="text" class="vTextField" '
                 'name="-2-0-name" maxlength="100" />', html=True)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class TestInlineMedia(TestCase):
     urls = "regressiontests.admin_inlines.urls"
     fixtures = ['admin-views-users.xml']
@@ -384,6 +387,7 @@ class TestInlinePermissions(TestCase):
         self.assertContains(response, 'id="id_inner2_set-0-DELETE"')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
     webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
     fixtures = ['admin-views-users.xml']
@@ -502,4 +506,4 @@ class SeleniumChromeTests(SeleniumFirefoxTests):
     webdriver_class = 'selenium.webdriver.chrome.webdriver.WebDriver'
 
 class SeleniumIETests(SeleniumFirefoxTests):
-    webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
\ No newline at end of file
+    webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
diff --git a/tests/regressiontests/admin_views/tests.py b/tests/regressiontests/admin_views/tests.py
index 0be8b36b27..047bcc2ae9 100644
--- a/tests/regressiontests/admin_views/tests.py
+++ b/tests/regressiontests/admin_views/tests.py
@@ -47,6 +47,7 @@ from .models import (Article, BarAccount, CustomArticle, EmptyModel, FooAccount,
 ERROR_MESSAGE = "Please enter the correct username and password \
 for a staff account. Note that both fields are case-sensitive."
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewBasicTest(TestCase):
     fixtures = ['admin-views-users.xml', 'admin-views-colors.xml',
                 'admin-views-fabrics.xml', 'admin-views-books.xml']
@@ -588,6 +589,7 @@ class AdminViewBasicTest(TestCase):
             msg='The "change password" link should not be displayed if a user does not have a usable password.')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewFormUrlTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ["admin-views-users.xml"]
@@ -619,6 +621,7 @@ class AdminViewFormUrlTest(TestCase):
             self.assertTrue('custom_filter_template.html' in [t.name for t in response.templates])
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminJavaScriptTest(TestCase):
     fixtures = ['admin-views-users.xml']
 
@@ -686,6 +689,7 @@ class AdminJavaScriptTest(TestCase):
             self.assertNotContains(response, 'inlines.min.js')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SaveAsTests(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml','admin-views-person.xml']
@@ -775,6 +779,7 @@ def get_perm(Model, perm):
     ct = ContentType.objects.get_for_model(Model)
     return Permission.objects.get(content_type=ct, codename=perm)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewPermissionsTest(TestCase):
     """Tests for Admin Views Permissions."""
 
@@ -1179,6 +1184,7 @@ class AdminViewPermissionsTest(TestCase):
         self.assertContains(response, 'id="login-form"')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewsNoUrlTest(TestCase):
     """Regression test for #17333"""
 
@@ -1210,6 +1216,7 @@ class AdminViewsNoUrlTest(TestCase):
         self.client.get('/test_admin/admin/logout/')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewDeletedObjectsTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml', 'deleted-objects.xml']
@@ -1326,6 +1333,7 @@ class AdminViewDeletedObjectsTest(TestCase):
         response = self.client.get('/test_admin/admin/admin_views/plot/%s/delete/' % quote(3))
         self.assertContains(response, should_contain)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewStringPrimaryKeyTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml', 'string-primary-key.xml']
@@ -1418,6 +1426,7 @@ class AdminViewStringPrimaryKeyTest(TestCase):
         self.assertContains(response, should_contain)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SecureViewTests(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -1576,6 +1585,7 @@ class SecureViewTests(TestCase):
         self.assertEqual(response.status_code, 302)
         self.assertEqual(response['Location'], 'http://example.com/users/super/')
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewUnicodeTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-unicode.xml']
@@ -1630,6 +1640,7 @@ class AdminViewUnicodeTest(TestCase):
         self.assertRedirects(response, '/test_admin/admin/admin_views/book/')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewListEditable(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml', 'admin-views-person.xml']
@@ -2004,6 +2015,7 @@ class AdminViewListEditable(TestCase):
         self.assertContains(response, '<th><a href="%d/">%d</a></th>' % (story2.id, story2.id), 1)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminSearchTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users', 'multiple-child-classes',
@@ -2051,6 +2063,7 @@ class AdminSearchTest(TestCase):
         self.assertNotContains(response, "Guido")
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminInheritedInlinesTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml',]
@@ -2137,6 +2150,7 @@ class AdminInheritedInlinesTest(TestCase):
         self.assertEqual(BarAccount.objects.all()[0].username, "%s-1" % bar_user)
         self.assertEqual(Persona.objects.all()[0].accounts.count(), 2)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminActionsTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml', 'admin-views-actions.xml']
@@ -2355,6 +2369,7 @@ class AdminActionsTest(TestCase):
         self.assertEqual(response.context["action_form"], None)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class TestCustomChangeList(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -2383,6 +2398,7 @@ class TestCustomChangeList(TestCase):
         self.assertNotContains(response, 'First Gadget')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class TestInlineNotEditable(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -2401,6 +2417,7 @@ class TestInlineNotEditable(TestCase):
         response = self.client.get('/test_admin/admin/admin_views/parent/add/')
         self.assertEqual(response.status_code, 200)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminCustomQuerysetTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -2456,6 +2473,7 @@ class AdminCustomQuerysetTest(TestCase):
         # Message should contain non-ugly model name. Instance representation is set by model's __unicode__()
         self.assertContains(response, '<li class="info">The cover letter &quot;John Doe II&quot; was changed successfully.</li>', html=True)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminInlineFileUploadTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml', 'admin-views-actions.xml']
@@ -2502,6 +2520,7 @@ class AdminInlineFileUploadTest(TestCase):
         self.assertTrue(response._container[0].find("Currently:") > -1)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminInlineTests(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -2820,6 +2839,7 @@ class AdminInlineTests(TestCase):
         self.assertEqual(Category.objects.get(id=4).order, 0)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class NeverCacheTests(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml', 'admin-views-colors.xml', 'admin-views-fabrics.xml']
@@ -2893,6 +2913,7 @@ class NeverCacheTests(TestCase):
         self.assertEqual(get_max_age(response), None)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class PrePopulatedTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -2928,6 +2949,7 @@ class PrePopulatedTest(TestCase):
         self.assertContains(response, "maxLength: 1000") # instead of 1,000
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SeleniumPrePopulatedFirefoxTests(AdminSeleniumWebDriverTestCase):
     webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
     urls = "regressiontests.admin_views.urls"
@@ -3051,6 +3073,7 @@ class SeleniumPrePopulatedIETests(SeleniumPrePopulatedFirefoxTests):
     webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class ReadonlyTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -3124,6 +3147,7 @@ class ReadonlyTest(TestCase):
         self.assertEquals(response.status_code, 404)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class RawIdFieldsTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -3157,6 +3181,7 @@ class RawIdFieldsTest(TestCase):
         self.assertContains(response2, "Spain")
         self.assertNotContains(response2, "England")
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class UserAdminTest(TestCase):
     """
     Tests user CRUD functionality.
@@ -3257,6 +3282,7 @@ class UserAdminTest(TestCase):
         self.assertEqual(response.context['form_url'], 'pony')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class GroupAdminTest(TestCase):
     """
     Tests group CRUD functionality.
@@ -3288,6 +3314,7 @@ class GroupAdminTest(TestCase):
             self.assertEqual(response.status_code, 200)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class CSSTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -3321,6 +3348,7 @@ except ImportError:
     docutils = None
 
 @unittest.skipUnless(docutils, "no docutils installed.")
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminDocsTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -3363,6 +3391,7 @@ class AdminDocsTest(TestCase):
         self.assertContains(response, '<li><a href="#built_in-add">add</a></li>', html=True)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class ValidXHTMLTests(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -3386,6 +3415,7 @@ class ValidXHTMLTests(TestCase):
         self.assertNotContains(response, ' xml:lang=""')
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class DateHierarchyTests(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
@@ -3512,6 +3542,7 @@ class DateHierarchyTests(TestCase):
             self.assert_non_localized_year(response, 2003)
             self.assert_non_localized_year(response, 2005)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminCustomSaveRelatedTests(TestCase):
     """
     Ensure that one can easily customize the way related objects are saved.
@@ -3580,6 +3611,7 @@ class AdminCustomSaveRelatedTests(TestCase):
         self.assertEqual([u'Catherine Stone', u'Paul Stone'], children_names)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminViewLogoutTest(TestCase):
     urls = "regressiontests.admin_views.urls"
     fixtures = ['admin-views-users.xml']
diff --git a/tests/regressiontests/admin_widgets/tests.py b/tests/regressiontests/admin_widgets/tests.py
index dd53256b05..8de68b2404 100644
--- a/tests/regressiontests/admin_widgets/tests.py
+++ b/tests/regressiontests/admin_widgets/tests.py
@@ -12,6 +12,7 @@ from django.core.files.storage import default_storage
 from django.core.files.uploadedfile import SimpleUploadedFile
 from django.db.models import DateField
 from django.test import TestCase as DjangoTestCase
+from django.test.utils import override_settings
 from django.utils import translation
 from django.utils.html import conditional_escape
 from django.utils.unittest import TestCase
@@ -122,6 +123,7 @@ class AdminFormfieldForDBFieldTests(TestCase):
         self.assertFormfield(models.Album, 'backside_art', widgets.AdminFileWidget)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminFormfieldForDBFieldWithRequestTests(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
 
@@ -135,6 +137,7 @@ class AdminFormfieldForDBFieldWithRequestTests(DjangoTestCase):
         self.assertContains(response, "Volkswagon Passat")
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminForeignKeyWidgetChangeList(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
     admin_root = '/widget_admin'
@@ -150,6 +153,7 @@ class AdminForeignKeyWidgetChangeList(DjangoTestCase):
         self.assertContains(response, '%s/auth/user/add/' % self.admin_root)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AdminForeignKeyRawIdWidget(DjangoTestCase):
     fixtures = ["admin-widgets-users.xml"]
     admin_root = '/widget_admin'
@@ -411,6 +415,7 @@ class RelatedFieldWidgetWrapperTests(DjangoTestCase):
 
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class DateTimePickerSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
     webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
     fixtures = ['admin-widgets-users.xml']
@@ -466,6 +471,7 @@ class DateTimePickerSeleniumIETests(DateTimePickerSeleniumFirefoxTests):
     webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class HorizontalVerticalFilterSeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):
     webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
     fixtures = ['admin-widgets-users.xml']
diff --git a/tests/regressiontests/comment_tests/tests/__init__.py b/tests/regressiontests/comment_tests/tests/__init__.py
index f5f4dac77b..40c0de0d57 100644
--- a/tests/regressiontests/comment_tests/tests/__init__.py
+++ b/tests/regressiontests/comment_tests/tests/__init__.py
@@ -6,6 +6,7 @@ from django.contrib.comments.models import Comment
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.sites.models import Site
 from django.test import TestCase
+from django.test.utils import override_settings
 
 from ..models import Article, Author
 
@@ -13,6 +14,7 @@ from ..models import Article, Author
 CT = ContentType.objects.get_for_model
 
 # Helper base class for comment tests that need data.
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.UnsaltedMD5PasswordHasher',))
 class CommentTestCase(TestCase):
     fixtures = ["comment_tests"]
     urls = 'django.contrib.comments.urls'
diff --git a/tests/regressiontests/comment_tests/tests/moderation_view_tests.py b/tests/regressiontests/comment_tests/tests/moderation_view_tests.py
index 45aa140745..2ada20a662 100644
--- a/tests/regressiontests/comment_tests/tests/moderation_view_tests.py
+++ b/tests/regressiontests/comment_tests/tests/moderation_view_tests.py
@@ -4,6 +4,7 @@ from django.contrib.auth.models import User, Permission
 from django.contrib.comments import signals
 from django.contrib.comments.models import Comment, CommentFlag
 from django.contrib.contenttypes.models import ContentType
+from django.conf import settings
 
 from . import CommentTestCase
 
diff --git a/tests/regressiontests/generic_inline_admin/tests.py b/tests/regressiontests/generic_inline_admin/tests.py
index db81eec47a..c6c1eeac5a 100644
--- a/tests/regressiontests/generic_inline_admin/tests.py
+++ b/tests/regressiontests/generic_inline_admin/tests.py
@@ -9,6 +9,7 @@ from django.contrib.contenttypes.generic import (
     generic_inlineformset_factory, GenericTabularInline)
 from django.forms.models import ModelForm
 from django.test import TestCase
+from django.test.utils import override_settings
 
 # local test models
 from .admin import MediaInline, MediaPermanentInline
@@ -16,6 +17,7 @@ from .models import (Episode, EpisodeExtra, EpisodeMaxNum, Media,
     EpisodePermanent, Category)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class GenericAdminViewTest(TestCase):
     urls = "regressiontests.generic_inline_admin.urls"
     fixtures = ['users.xml']
@@ -128,6 +130,7 @@ class GenericAdminViewTest(TestCase):
         formset = inline_formset(instance=e)
         self.assertTrue(formset.get_queryset().ordered)
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class GenericInlineAdminParametersTest(TestCase):
     urls = "regressiontests.generic_inline_admin.urls"
     fixtures = ['users.xml']
@@ -181,6 +184,7 @@ class GenericInlineAdminParametersTest(TestCase):
         self.assertEqual(formset.initial_form_count(), 1)
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class GenericInlineAdminWithUniqueTogetherTest(TestCase):
     urls = "regressiontests.generic_inline_admin.urls"
     fixtures = ['users.xml']
diff --git a/tests/regressiontests/special_headers/tests.py b/tests/regressiontests/special_headers/tests.py
index 087bfe9863..b890adbbad 100644
--- a/tests/regressiontests/special_headers/tests.py
+++ b/tests/regressiontests/special_headers/tests.py
@@ -1,7 +1,9 @@
 from django.contrib.auth.models import User
 from django.test import TestCase
+from django.test.utils import override_settings
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SpecialHeadersTest(TestCase):
     fixtures = ['data.xml']
     urls = 'regressiontests.special_headers.urls'
diff --git a/tests/regressiontests/test_client_regress/models.py b/tests/regressiontests/test_client_regress/models.py
index ab4e592239..ab0afd08f6 100644
--- a/tests/regressiontests/test_client_regress/models.py
+++ b/tests/regressiontests/test_client_regress/models.py
@@ -12,7 +12,7 @@ from django.template import (TemplateDoesNotExist, TemplateSyntaxError,
 import django.template.context
 from django.test import Client, TestCase
 from django.test.client import encode_file, RequestFactory
-from django.test.utils import ContextList
+from django.test.utils import ContextList, override_settings
 from django.template.response import SimpleTemplateResponse
 from django.http import HttpResponse
 
@@ -163,6 +163,7 @@ class AssertContainsTests(TestCase):
         response = HttpResponse('Hello')
         self.assertNotContains(response, 'Bye')
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class AssertTemplateUsedTests(TestCase):
     fixtures = ['testdata.json']
 
@@ -522,6 +523,7 @@ class AssertFormErrorTests(TestCase):
         except AssertionError as e:
             self.assertIn("abc: The form 'form' in context 0 does not contain the non-field error 'Some error.' (actual errors: )", str(e))
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class LoginTests(TestCase):
     fixtures = ['testdata']
 
@@ -542,6 +544,7 @@ class LoginTests(TestCase):
         self.assertRedirects(response, "http://testserver/test_client_regress/get_view/")
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SessionEngineTests(TestCase):
     fixtures = ['testdata']
 
@@ -588,6 +591,7 @@ class URLEscapingTests(TestCase):
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response.content, 'Hi, Arthur')
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class ExceptionTests(TestCase):
     fixtures = ['testdata.json']
 
@@ -661,6 +665,7 @@ class zzUrlconfSubstitutionTests(TestCase):
         url = reverse('arg_view', args=['somename'])
         self.assertEqual(url, '/test_client_regress/arg_view/somename/')
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class ContextTests(TestCase):
     fixtures = ['testdata']
 
@@ -707,6 +712,7 @@ class ContextTests(TestCase):
             django.template.context._standard_context_processors = None
 
 
+@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))
 class SessionTests(TestCase):
     fixtures = ['testdata.json']