diff --git a/requirements/docs.txt b/requirements/docs.txt
index b54d01b..6fe30e2 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -1,4 +1,4 @@
-sphinx >5.0, <6.0
+sphinx >5.0, <9.0
 myst-parser >=0.18.1, <5.0.0
 nbsphinx >=0.8.5, <=0.9.7
 nbconvert >7.14, <7.17