diff --git a/docs/requirements.txt b/docs/requirements.txt
index b83af81..f5a1be0 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -8,7 +8,7 @@ requests>=2.21.0
 
 # Building Docs requirements
 sphinxjp.themes.basicstrap
-sphinx<5.0.0
+sphinx<8.0.0
 sphinx-gallery>0.6.2
 pillow>=7.1.2
 breathe>=4.34.0