diff --git a/tests/testapp/test_feincms3.py b/tests/testapp/test_feincms3.py
index 3605807..6899da6 100644
--- a/tests/testapp/test_feincms3.py
+++ b/tests/testapp/test_feincms3.py
@@ -32,11 +32,23 @@ def merge_dicts(*dicts):
     return res
 
 
+def monkeypatches():
+    import django
+
+    if django.VERSION >= (2, 1):
+        from ckeditor.widgets import CKEditorWidget
+        _original_render = CKEditorWidget.render
+        def render(self, name, value, attrs=None, renderer=None):
+            return _original_render(self, name, value, attrs=attrs)
+        CKEditorWidget.render = render
+
+
 class Test(TestCase):
     def setUp(self):
         self.user = User.objects.create_superuser(
             'admin', 'admin@test.ch', 'blabla')
         deactivate_all()
+        monkeypatches()
 
     def login(self):
         client = Client()