diff --git a/tox.ini b/tox.ini
index fb0027177..8d993140d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -34,7 +34,7 @@ commands =
 [testenv:docs]
 basepython = python3.10
 deps =
-    sphinx<4.4.0
+    sphinx>=5
     pydata_sphinx_theme
 commands = sphinx-build -W -q -b html docs {envtmpdir}/html {posargs}