diff --git a/.travis.yml b/.travis.yml
index 597fe8a..0ed3231 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,14 @@ env:
     - DJANGO=1.9
     - DJANGO=1.10
     - DJANGO=1.11
+    - DJANGO=2.0
+    - DJANGO=2.1
+matrix:
+  exclude:
+    - python: "2.7"
+      env: DJANGO=2.0
+    - python: "2.7"
+      env: DJANGO=2.1
 install:
   - pip install django==${DJANGO} Pillow psycopg2
   - pip install .
diff --git a/jsonate/widgets.py b/jsonate/widgets.py
index 7d05952..aa8d1e8 100644
--- a/jsonate/widgets.py
+++ b/jsonate/widgets.py
@@ -11,7 +11,7 @@
 
 class JsonateWidget(forms.Textarea):
     
-    def render(self, name, value, attrs=None):
+    def render(self, name, value, attrs=None, renderer=None):
         if not isinstance(value, basestring):
             value = jsonate(value, indent=2)
-        return super(JsonateWidget, self).render(name, value, attrs)
\ No newline at end of file
+        return super(JsonateWidget, self).render(name, value, attrs, renderer)
\ No newline at end of file