diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7df8632..1d1df65 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
-sphinx==3.4.3
+sphinx==6.1.3
 sphinx-click==2.5.0
 sphinx-rtd-theme==0.5.1