diff --git a/dash/dash.py b/dash/dash.py
index c0a4a9c..c8a2357 100644
--- a/dash/dash.py
+++ b/dash/dash.py
@@ -74,7 +74,8 @@ def __init__(self, data, encoder=plotly.utils.PlotlyJSONEncoder, safe=False,
 _re_index_scripts_id = re.compile(r'src=".*dash[-_]renderer.*"')
 
 
-# pylint: disable=too-many-instance-attributes, too-many-arguments, too-many-locals
+# pylint: disable=too-many-instance-attributes
+# pylint: disable=too-many-arguments, too-many-locals
 class Dash(object):
     # pylint: disable=unused-argument
     def __init__(self, url_base_pathname='/',
@@ -249,11 +250,17 @@ def _relative_url_path(path_prefix, relative_package_path='', namespace=''):
 
         srcs = []
         for resource in resources:
+            is_dynamic_resource = resource.get('dynamic', False)
+
             if 'relative_package_path' in resource:
-                if isinstance(resource['relative_package_path'], str):
-                    srcs.append(_relative_url_path(path_prefix, **resource))
-                else:
-                    for rel_path in resource['relative_package_path']:
+                paths = resource['relative_package_path']
+                paths = [paths] if isinstance(paths, str) else paths
+
+                for rel_path in paths:
+                    self.registered_paths[resource['namespace']]\
+                        .add(rel_path)
+
+                    if not is_dynamic_resource:
                         srcs.append(_relative_url_path(
                             path_prefix,
                             relative_package_path=rel_path,
diff --git a/dash/resources.py b/dash/resources.py
index 43caf44..8f5cfbc 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -18,6 +18,8 @@ def _filter_resources(self, all_resources, dev_bundles=False):
         filtered_resources = []
         for s in all_resources:
             filtered_resource = {}
+            if 'dynamic' in s:
+                filtered_resource['dynamic'] = s['dynamic']
             if 'namespace' in s:
                 filtered_resource['namespace'] = s['namespace']
             if 'external_url' in s and not self.config.serve_locally:
diff --git a/dash/views.py b/dash/views.py
index 30eaf47..05da77a 100644
--- a/dash/views.py
+++ b/dash/views.py
@@ -118,7 +118,8 @@ def _dash_component_suites(self, request, *args, **kwargs):  # pylint: disable=u
         ext = kwargs.get('path_in_package_dist', '').split('.')[-1]
         mimetype = {
             'js': 'application/JavaScript',
-            'css': 'text/css'
+            'css': 'text/css',
+            'map': 'application/json',
         }[ext]
 
         response = HttpResponse(self.dash.serve_component_suites(*args, **kwargs), content_type=mimetype)
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 27c5fa1..bfd52dc 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,4 +1,4 @@
-;dash_core_components==0.35.1
+;dash_core_components>=0.40.2
 ;dash_html_components>=0.14.0rc4
 ;dash_renderer>=0.14.1
 ;Django>=1.9,<2.2
diff --git a/requirements.txt b/requirements.txt
index 0f37e91..c9a0d73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-;dash_core_components==0.35.1
+;dash_core_components>=0.40.2
 ;dash_html_components>=0.14.0rc4
 plotly>=2.0.8
 dash-renderer>=0.14.1
diff --git a/tox.ini b/tox.ini
index e7fdd35..731d1f5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,7 +22,7 @@ passenv = *
 
 [py__]
 commands =
-    pip install "dash_core_components==0.35.1" --no-deps
+    pip install "dash_core_components>=0.40.2" --no-deps
     pip install "dash_html_components>=0.14.0rc4" --no-deps
     python --version
     python -m unittest tests.development.test_base_component
@@ -34,7 +34,7 @@ commands =
 [py__dj]
 changedir=tests/django_project
 commands =
-    pip install "dash_core_components==0.35.1" --no-deps
+    pip install "dash_core_components>=0.40.2" --no-deps
     pip install "dash_html_components>=0.14.0rc4" --no-deps
     python --version
     python manage.py collectstatic --noinput