diff --git a/doc/conf.py b/doc/conf.py
index 82e0abfa9..775d8290f 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -44,7 +44,6 @@
     "sphinx_mdinclude",
     "myst_nb",
     "sphinx_markdown_tables",
-    "readthedocs_ext.readthedocs",
 ]
 
 # read the docs version used for links
diff --git a/pyproject.toml b/pyproject.toml
index fce228793..4ac2d6a11 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,7 +64,6 @@ dependencies = [
 doc = [
     "ipython",
     "myst-nb",
-    "readthedocs-sphinx-ext>=2.2",
     "sphinx",
     "sphinx-book-theme",
     "sphinx-markdown-tables",