diff --git a/docs/requirements.txt b/docs/requirements.txt
index 492cd526..8c7cb177 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -6,7 +6,6 @@
 autodoc-traits
 importlib_metadata>=3.6; python_version < '3.10'
 myst-parser
-sphinx>=2
 sphinx-autobuild
 sphinx-book-theme
 sphinx-copybutton