diff --git a/docs/conf.py b/docs/conf.py
index 3aa6fd48e..e7932eadc 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -40,7 +40,7 @@
               'extensions.zinnia_docs']
 
 intersphinx_mapping = {
-    'django': ('http://readthedocs.org/docs/django/en/latest/', None),
+    'django': ('https://django.readthedocs.io/en/latest/', None),
     }
 
 # Add any paths that contain templates here, relative to this directory.
diff --git a/docs/extensions/zinnia_docs.py b/docs/extensions/zinnia_docs.py
index 69dff8624..0434081d8 100644
--- a/docs/extensions/zinnia_docs.py
+++ b/docs/extensions/zinnia_docs.py
@@ -7,8 +7,8 @@
 import inspect
 
 from django.db import models
+from django.utils.encoding import force_text
 from django.utils.html import strip_tags
-from django.utils.encoding import force_unicode
 
 
 def skip_model_member(app, what, name, obj, skip, options):
@@ -22,10 +22,10 @@ def process_model_docstring(app, what, name, obj, options, lines):
     if inspect.isclass(obj) and issubclass(obj, models.Model):
         for field in obj._meta.fields:
             # Decode and strip any html out of the field's help text
-            help_text = strip_tags(force_unicode(field.help_text))
+            help_text = strip_tags(force_text(field.help_text))
             # Decode and capitalize the verbose name, for use if there isn't
             # any help text
-            verbose_name = force_unicode(field.verbose_name).capitalize()
+            verbose_name = force_text(field.verbose_name).capitalize()
 
             if help_text:
                 lines.append(':param %s: %s' % (field.attname, help_text))
@@ -40,19 +40,19 @@ def process_model_docstring(app, what, name, obj, options, lines):
 
 def setup(app):
     app.add_crossref_type(
-        directivename = 'setting',
-        rolename      = 'setting',
-        indextemplate = 'pair: %s; setting',
+        directivename='setting',
+        rolename='setting',
+        indextemplate='pair: %s; setting',
     )
     app.add_crossref_type(
-        directivename = 'templatetag',
-        rolename      = 'ttag',
-        indextemplate = 'pair: %s; template tag'
+        directivename='templatetag',
+        rolename='ttag',
+        indextemplate='pair: %s; template tag'
     )
     app.add_crossref_type(
-        directivename = 'templatefilter',
-        rolename      = 'tfilter',
-        indextemplate = 'pair: %s; template filter'
+        directivename='templatefilter',
+        rolename='tfilter',
+        indextemplate='pair: %s; template filter'
     )
     app.connect('autodoc-process-docstring',
                 process_model_docstring)
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 987a0f698..d3970c53c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 beautifulsoup4==4.6.0
-django==2.0.2
+django==2.0.3
 django-contrib-comments==1.8.0
 django-mptt==0.9.0
 django-tagging==0.4.6