diff --git a/django_mailbox/tests/test_process_email.py b/django_mailbox/tests/test_process_email.py
index f00e21b..a3d2490 100644
--- a/django_mailbox/tests/test_process_email.py
+++ b/django_mailbox/tests/test_process_email.py
@@ -8,7 +8,7 @@ from django_mailbox.models import Mailbox, Message
 from django_mailbox.utils import convert_header_to_unicode
 from django_mailbox import utils
 from django_mailbox.tests.base import EmailMessageTestCase
-from django.utils.encoding import force_text
+from django.utils.encoding import force_str
 from django.core.mail import EmailMessage
 
 __all__ = ['TestProcessEmail']
@@ -366,12 +366,12 @@ class TestProcessEmail(EmailMessageTestCase):
         email_object = self._get_email_object(
             'message_with_long_content.eml',
         )
-        size = len(force_text(email_object.as_string()))
+        size = len(force_str(email_object.as_string()))
 
         msg = self.mailbox.process_incoming_message(email_object)
 
         self.assertEqual(size,
-                         len(force_text(msg.get_email_object().as_string())))
+                         len(force_str(msg.get_email_object().as_string())))
 
     def test_message_saved(self):
         message = self._get_email_object('generic_message.eml')