diff --git a/requirements-docs.txt b/requirements-docs.txt
index efb0d5f9..849d9d4b 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,6 +1,6 @@
 # documentation
 recommonmark==0.7.1
-Sphinx==8.1.0
+Sphinx==8.1.3
 sphinx-autodoc2==0.5.0
 myst-parser==4.0.0
 sphinx-rtd-theme==3.0.1