diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 0c6ec18..13aaeee 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -39,7 +39,8 @@ jobs:
       uses: ammaraskar/sphinx-action@master
       with:
         docs-folder: "sphinx/"
-
+        pre-build-command: "apt-get update -y; apt-get install -y pandoc"
+        
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
diff --git a/sphinx/conf.py b/sphinx/conf.py
index ba2476e..1a98f28 100644
--- a/sphinx/conf.py
+++ b/sphinx/conf.py
@@ -35,8 +35,8 @@
 extensions = ['sphinxcontrib.globalsubs',
               'sphinx.ext.intersphinx',
               'sphinx.ext.autosectionlabel',
-              'sphinx_design'
-              ]
+              'sphinx_design',
+              'nbsphinx']
 
 autosectionlabel_prefix_document = True