diff --git a/docs/index.rst b/docs/index.rst
index b95460b..f8eed51 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -51,7 +51,7 @@ The extension provides two configuration options.
   This must be one of the renderers defined in ``openapi_renderers``.
 
   :Type: A string corresponding to the alias of a registered renderer.
-  :Default: ``'httpdomain:old'``
+  :Default: ``'httpdomain'``
 
 
 Options
diff --git a/sphinxcontrib/openapi/__init__.py b/sphinxcontrib/openapi/__init__.py
index 33908c0..420de0d 100644
--- a/sphinxcontrib/openapi/__init__.py
+++ b/sphinxcontrib/openapi/__init__.py
@@ -27,7 +27,7 @@
     "httpdomain": renderers.HttpdomainRenderer,
     "httpdomain:old": renderers.HttpdomainOldRenderer,
 }
-_DEFAULT_RENDERER_NAME = "httpdomain:old"
+_DEFAULT_RENDERER_NAME = "httpdomain"
 
 
 def _register_rendering_directives(app, conf):
diff --git a/tests/conftest.py b/tests/conftest.py
index d102a4a..411c641 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -45,23 +45,26 @@ def run_sphinx(tmpdir):
     src = tmpdir.ensure('src', dir=True)
     out = tmpdir.ensure('out', dir=True)
 
-    def run(spec, options={}):
+    def run(spec, *, options={}, openapi_default_renderer=None):
         options_raw = '\n'.join([
             '   %s' % _format_option_raw(key, val)
             for key, val in options.items()])
 
-        src.join('conf.py').write_text(
-            textwrap.dedent('''
-                import os
+        conf_py = textwrap.dedent('''
+            import os
 
-                project = 'sphinxcontrib-openapi-test'
-                copyright = '2017, Ihor Kalnytskyi'
+            project = 'sphinxcontrib-openapi-test'
+            copyright = '2017, Ihor Kalnytskyi'
 
-                extensions = ['sphinxcontrib.openapi']
-                source_suffix = '.rst'
-                master_doc = 'index'
-            '''),
-            encoding='utf-8')
+            extensions = ['sphinxcontrib.openapi']
+            source_suffix = '.rst'
+            master_doc = 'index'
+        ''')
+
+        if openapi_default_renderer is not None:
+            conf_py += f"openapi_default_renderer = '{openapi_default_renderer}'\n"
+
+        src.join('conf.py').write_text(conf_py, encoding='utf-8')
 
         src.join('index.rst').write_text(
             '.. openapi:: %s\n%s' % (spec, options_raw),
diff --git a/tests/test_openapi.py b/tests/test_openapi.py
index 551f6a6..8f12582 100644
--- a/tests/test_openapi.py
+++ b/tests/test_openapi.py
@@ -1865,7 +1865,11 @@ def test_openapi2_examples(tmpdir, run_sphinx):
     py.path.local(spec).copy(tmpdir.join('src', 'test-spec.yml'))
 
     with pytest.raises(ValueError) as excinfo:
-        run_sphinx('test-spec.yml', options={'examples': True})
+        run_sphinx(
+            'test-spec.yml',
+            options={'examples': True},
+            openapi_default_renderer='httpdomain:old',
+        )
 
     assert str(excinfo.value) == (
         'Rendering examples is not supported for OpenAPI v2.x specs.')
@@ -1880,7 +1884,11 @@ def test_openapi3_examples(tmpdir, run_sphinx, render_examples):
         'v3.0',
         'petstore.yaml')
     py.path.local(spec).copy(tmpdir.join('src', 'test-spec.yml'))
-    run_sphinx('test-spec.yml', options={'examples': render_examples})
+    run_sphinx(
+        'test-spec.yml',
+        options={'examples': render_examples},
+        openapi_default_renderer='httpdomain:old',
+    )
 
     rendered_html = tmpdir.join('out', 'index.html').read_text('utf-8')