diff --git a/docs/environment.yml b/docs/environment.yml
index 982628e4..2753e796 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -11,4 +11,3 @@ dependencies:
 - scikit-image
 - sphinx
 - nbsphinx
-- jupyter_sphinx
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 5f079e21..cd5b9089 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -31,7 +31,6 @@
     'sphinx.ext.todo',
     'autodoc_traits',
     'nbsphinx',
-    'jupyter_sphinx.embed_widgets',
     'nbsphinx_link',
 ]
 
@@ -208,8 +207,6 @@ def setup(app):
         finally:
             os.chdir(popd)
 
-    app.setup_extension('jupyter_sphinx.embed_widgets')
-
     def add_scripts(app):
         for fname in ['jupyter-threejs.js']:
             if not os.path.exists(os.path.join(here, '_static', fname)):
diff --git a/setup.py b/setup.py
index bdd3dddd..254fbad0 100644
--- a/setup.py
+++ b/setup.py
@@ -86,7 +86,6 @@
         'docs': [
             'sphinx>=1.5',
             'nbsphinx>=0.2.13',
-            'jupyter_sphinx',
             'nbsphinx-link',
         ]
     },