diff --git a/src/sherlock/tests.py b/src/sherlock/tests.py
index 5d8b054..114c187 100644
--- a/src/sherlock/tests.py
+++ b/src/sherlock/tests.py
@@ -52,12 +52,13 @@ class TestMesureModel(TestCase):
         self.gauge_1 = Gauge.objects.create(serial_number='undefined', category=self.cat_water)
         self.gauge_2 = Gauge.objects.create(serial_number='undefined', category=self.cat_gaz)
         
-        d1 = timezone.make_aware(datetime(2016, 1, 2))
-        d2 = timezone.make_aware(datetime(2016, 1, 3))
+        d1 = timezone.make_aware(datetime(2016, 1, 1))
+        d2 = timezone.make_aware(datetime(2016, 1, 2))
+        d3 = timezone.make_aware(datetime(2016, 1, 3))
 
         self.mesure_1 = Mesure.objects.create(moment=d1, value=0.001, gauge=self.gauge_1)
         self.mesure_2 = Mesure.objects.create(moment=d2, value=0.002, gauge=self.gauge_2)
-        self.mesure_3 = Mesure.objects.create(moment=timezone.make_aware(datetime.now()), value=0.003, gauge=self.gauge_1)
+        self.mesure_3 = Mesure.objects.create(moment=d3, value=0.003, gauge=self.gauge_1)
         
     def test_category_property(self):        
         self.assertEqual(self.cat_water, self.mesure_1.category)
@@ -72,8 +73,8 @@ class TestMesureModel(TestCase):
             mesure_1.diff(mesure_2)
     
     def test_previous(self):
-        self.assertEqual(self.mesure_1, self.mesure_2.previous)
+        self.assertEqual(self.mesure_1, self.mesure_3.previous)
     
     def test_next(self):
-        self.assertEqual(self.mesure_2, self.mesure_1.next)
+        self.assertEqual(self.mesure_3, self.mesure_1.next)