diff --git a/tests_multitenant/test_settings.py b/tests_multitenant/test_settings.py
index ffa3090..98ee238 100644
--- a/tests_multitenant/test_settings.py
+++ b/tests_multitenant/test_settings.py
@@ -14,6 +14,8 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import datetime
+import json
 import os
 import threading
 import random
@@ -268,3 +270,36 @@ def test_unique_cookies(tenants, settings):
             cookie_names.add(settings.SESSION_COOKIE_NAME)
 
     assert len(cookie_names) == len(tenants) * 2
+
+
+def test_tenant_json_settings_reload(tenants, settings, freezer):
+    settings.clear_tenants_settings()
+
+    with utilities.patch_default_settings(settings,
+                                          TENANT_SETTINGS_LOADERS=('hobo.multitenant.settings_loaders.SettingsJSON',)):
+
+        # check EXTEND_ME has its base value
+        assert django.conf.settings.EXTEND_ME == [1]
+
+        # check EXTEND_ME is extended
+        for tenant in tenants:
+            with tenant_context(tenant):
+                assert django.conf.settings.EXTEND_ME == [1, 2]
+
+        # move 1 minute in the future
+        freezer.move_to(datetime.timedelta(seconds=60))
+
+        # update EXTEND_ME tenant value
+        for tenant in tenants:
+            with open(os.path.join(tenant.get_directory(), 'settings.json'), 'w') as fd:
+                json.dump({
+                    'EXTEND_ME.extend': [3]
+                }, fd)
+
+        # move 1 minute in the future
+        freezer.move_to(datetime.timedelta(seconds=60))
+
+        # check EXTEND_ME is still extended from base value
+        for tenant in tenants:
+            with tenant_context(tenant):
+                assert django.conf.settings.EXTEND_ME == [1, 3]
diff --git a/tox.ini b/tox.ini
index 9c981a4..9071ea8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -51,6 +51,7 @@ deps:
 	http://git.entrouvert.org/debian/django-tenant-schemas.git/snapshot/django-tenant-schemas-master.tar.gz
 	httmock
 	requests
+	pytest-freezegun
 commands =
 	./getlasso.sh
 	hobo: py.test {env:COVERAGE:} {env:NOMIGRATIONS:} {posargs:tests/}