diff --git a/autotest/test_notebooks.py b/autotest/test_notebooks.py
index 17967c9280..68e24b65cb 100644
--- a/autotest/test_notebooks.py
+++ b/autotest/test_notebooks.py
@@ -1,5 +1,4 @@
 import re
-from pathlib import Path
 from pprint import pprint
 
 import pytest
diff --git a/pyproject.toml b/pyproject.toml
index bb5ebb487b..f232d0fa6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -83,6 +83,7 @@ doc = [
     "ipython[kernel]",
     "jupytext",
     "myst-parser",
+    "nbconvert <7.14.0",
     "nbsphinx",
     "PyYAML",
     "rtds-action",