diff --git a/date_range/tests/test_date_range.py b/date_range/tests/test_date_range.py
index 398d663..ccba1f1 100644
--- a/date_range/tests/test_date_range.py
+++ b/date_range/tests/test_date_range.py
@@ -8,8 +8,6 @@ from odoo.tests.common import TransactionCase
 
 
 class DateRangeTest(TransactionCase):
-    post_install = True
-    at_install = False
 
     def setUp(self):
         super(DateRangeTest, self).setUp()
diff --git a/date_range/tests/test_date_range_generator.py b/date_range/tests/test_date_range_generator.py
index 9bbe929..5133854 100644
--- a/date_range/tests/test_date_range_generator.py
+++ b/date_range/tests/test_date_range_generator.py
@@ -10,8 +10,6 @@ from odoo.tests.common import TransactionCase
 
 
 class DateRangeGeneratorTest(TransactionCase):
-    post_install = True
-    at_install = False
 
     def setUp(self):
         super(DateRangeGeneratorTest, self).setUp()
diff --git a/date_range/tests/test_date_range_type.py b/date_range/tests/test_date_range_type.py
index 51519ff..fc98b88 100644
--- a/date_range/tests/test_date_range_type.py
+++ b/date_range/tests/test_date_range_type.py
@@ -9,8 +9,6 @@ from odoo.tools import mute_logger
 
 
 class DateRangeTypeTest(TransactionCase):
-    post_install = True
-    at_install = False
 
     def setUp(self):
         super(DateRangeTypeTest, self).setUp()