diff --git a/docs/python/_common/onnx_sphinx.py b/docs/python/_common/onnx_sphinx.py
index 9e72648618..7562d23289 100644
--- a/docs/python/_common/onnx_sphinx.py
+++ b/docs/python/_common/onnx_sphinx.py
@@ -882,7 +882,7 @@ def _generate_op_doc(app):
 def setup(app):
     """
     Sphinx extension `onnx_sphinx` displays documentation
-    on ONN Operators.
+    of all ONNX Operators.
     """
     import sphinx
 
diff --git a/docs/python/inference/conf.py b/docs/python/inference/conf.py
index bca894c31d..66a6154cee 100644
--- a/docs/python/inference/conf.py
+++ b/docs/python/inference/conf.py
@@ -38,9 +38,6 @@ extensions = [
     "sphinx.ext.graphviz",
     "pyquickhelper.sphinxext.sphinx_runpython_extension",
     "sphinxcontrib.googleanalytics",
-    "sphinx_exec_code",
-    "sphinx_tabs.tabs",
-    "onnx_sphinx",
 ]
 
 templates_path = ["_templates"]
diff --git a/docs/python/inference/index.rst b/docs/python/inference/index.rst
index c99edda46a..a3454f33a9 100644
--- a/docs/python/inference/index.rst
+++ b/docs/python/inference/index.rst
@@ -11,5 +11,3 @@ or the `Github project <https://github.com/microsoft/onnxruntime/>`_.
 
     tutorial
     api_summary
-    auto_examples/index
-    operators/index
diff --git a/docs/python/requirements.txt b/docs/python/requirements.txt
index a6c7290790..61287012ba 100644
--- a/docs/python/requirements.txt
+++ b/docs/python/requirements.txt
@@ -7,6 +7,7 @@ sphinx-gallery
 sphinxcontrib.imagesvg
 sphinxcontrib.googleanalytics
 sphinx_rtd_theme
+furo
 pyquickhelper
 pandas
 pydot