diff --git a/MANIFEST.in b/MANIFEST.in
index ecf4ee7..f7ad473 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,7 +1,7 @@
 include tags_input
 recursive-include tags_input *.py
 recursive-include tags_input/templates *.html
-recursive-include tags_input/static/js *.js
-recursive-include tags_input/static/css *.css
-recursive-include tags_input/static/css/base/images *.png
+recursive-include tags_input/static *.js
+recursive-include tags_input/static *.css
+recursive-include tags_input/static *.png
 
diff --git a/setup.py b/setup.py
index 9609468..eecba6a 100644
--- a/setup.py
+++ b/setup.py
@@ -55,7 +55,7 @@ def run_tests(self):
         },
         extras_require={
             'docs': [
-                'django',
+                'django<2',
                 'mock',
                 'sphinx>=1.7.2',
             ],
diff --git a/tags_input/__about__.py b/tags_input/__about__.py
index 19ecc34..374b09f 100644
--- a/tags_input/__about__.py
+++ b/tags_input/__about__.py
@@ -1,5 +1,5 @@
 __package_name__ = 'django-tags-input'
-__version__ = '4.1.0'
+__version__ = '4.2.0'
 __author__ = 'Rick van Hattem'
 __author_email__ = 'wolph@wol.ph'
 __description__ = ' '.join('''
diff --git a/tags_input/widgets.py b/tags_input/widgets.py
index 30d80a0..d6445cf 100644
--- a/tags_input/widgets.py
+++ b/tags_input/widgets.py
@@ -28,7 +28,7 @@ def build_attrs(self, base_attrs, extra_attrs=None, **kwargs):
             attrs.update(extra_attrs)
         return attrs
 
-    def render(self, name, value, attrs=None, choices=()):
+    def render(self, name, value, attrs=None, choices=(), renderer=None):
         context = self.build_attrs(attrs, name=name)
         context['on_add_tag'] = self.on_add_tag
         context['on_remove_tag'] = self.on_remove_tag