diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7e6c7b34..0e072838 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
-sphinx>=7.4.7,<9
+sphinx>=8.1.3,<9
 myst-parser>=3.0.1,<5
 sphinx-rtd-theme>=3.1.0,<4