diff --git a/docs/requirements.txt b/docs/requirements.txt
index 99b8ca6..5636c7f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx~=4.1
+sphinx~=5.1
 # >= 1.0.0rc1 for https://github.com/readthedocs/sphinx_rtd_theme/issues/1115
 sphinx-rtd-theme >= 1.0.0rc1
 sphinx-autodoc-typehints