diff --git a/doc/source/conf.py b/doc/source/conf.py
index 4f08eda..fe7b3d5 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -45,7 +45,6 @@ extensions = [
     "sphinx.ext.intersphinx",
     "sphinx_copybutton",
     "sphinxcontrib.katex",
-    "nbsphinx",
 ]
 
 templates_path = ["_templates"]