diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0ace64c6..cb6cea48 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==2.4.4
+sphinx==6.1.3
 sphinx-py3doc-enhanced-theme
 m2r
 -e .