diff --git a/cachalot/tests/read.py b/cachalot/tests/read.py
index 4b72f72..38e1b03 100644
--- a/cachalot/tests/read.py
+++ b/cachalot/tests/read.py
@@ -15,7 +15,6 @@ from django.db.models import Count
 from django.db.transaction import TransactionManagementError
 from django.test import (
     TransactionTestCase, skipUnlessDBFeature, override_settings)
-from django.utils.six import PY3
 from pytz import UTC
 
 from ..utils import _get_table_cache_key
@@ -762,12 +761,12 @@ class ParameterTypeTestCase(TransactionTestCase):
 
         with self.assertNumQueries(1):
             list(Test.objects.filter(bin=b'abc'))
-        with self.assertNumQueries(0 if self.is_mysql and PY3 else 1):
+        with self.assertNumQueries(0 if self.is_mysql else 1):
             list(Test.objects.filter(bin=b'abc'))
 
         with self.assertNumQueries(1):
             list(Test.objects.filter(bin=b'def'))
-        with self.assertNumQueries(0 if self.is_mysql and PY3 else 1):
+        with self.assertNumQueries(0 if self.is_mysql else 1):
             list(Test.objects.filter(bin=b'def'))
 
     def test_float(self):