diff --git a/server/lib/python/cartodb_services/test/metrics/test_quota.py b/server/lib/python/cartodb_services/test/metrics/test_quota.py
index c379a82..079c31d 100644
--- a/server/lib/python/cartodb_services/test/metrics/test_quota.py
+++ b/server/lib/python/cartodb_services/test/metrics/test_quota.py
@@ -35,7 +35,7 @@ class TestQuotaChecker(TestCase):
             soft_limit = False
         )
         redis_conn = MockRedis()
-        redis_conn.zincrby(self.redis_key, self.period_end_date.day, 999)
+        redis_conn.zincrby(self.redis_key, self.period_end_date.strftime('%d'), 999)
         assert QuotaChecker(user_service_config, redis_conn).check() == True
 
     def test_routing_quota_check_fails_when_quota_exhausted(self):
@@ -48,7 +48,7 @@ class TestQuotaChecker(TestCase):
             soft_limit = False
         )
         redis_conn = MockRedis()
-        redis_conn.zincrby(self.redis_key, self.period_end_date.day, 1001)
+        redis_conn.zincrby(self.redis_key, self.period_end_date.strftime('%d'), 1001)
         checker = QuotaChecker(user_service_config, redis_conn)
         assert checker.check() == False
 
@@ -66,7 +66,7 @@ class TestQuotaChecker(TestCase):
             soft_limit = False
         )
         redis_conn = MockRedis()
-        redis_conn.zincrby(self.redis_key, self.period_end_date.day, 1000)
+        redis_conn.zincrby(self.redis_key, self.period_end_date.strftime('%d'), 1000)
         checker = QuotaChecker(user_service_config, redis_conn)
         assert checker.check() == False
 
@@ -80,6 +80,6 @@ class TestQuotaChecker(TestCase):
             soft_limit = True
         )
         redis_conn = MockRedis()
-        redis_conn.zincrby(self.redis_key, self.period_end_date.day, 1001)
+        redis_conn.zincrby(self.redis_key, self.period_end_date.strftime('%d'), 1001)
         checker = QuotaChecker(user_service_config, redis_conn)
         assert checker.check() == True
diff --git a/server/lib/python/cartodb_services/test/test_helper.py b/server/lib/python/cartodb_services/test/test_helper.py
index 87beef2..fa7f6bd 100644
--- a/server/lib/python/cartodb_services/test/test_helper.py
+++ b/server/lib/python/cartodb_services/test/test_helper.py
@@ -73,7 +73,7 @@ def increment_service_uses(redis_conn, username, orgname=None,
     yearmonth = date.strftime('%Y%m')
     redis_name = "{0}:{1}:{2}:{3}:{4}".format(prefix, entity_name,
                                               service, metric, yearmonth)
-    redis_conn.zincrby(redis_name, date.day, amount)
+    redis_conn.zincrby(redis_name, date.strftime('%d'), amount)
 
 
 def plpy_mock_config():