diff --git a/docs/requirements.txt b/docs/requirements.txt
index 74edebeb..ac084f04 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -6,4 +6,4 @@ future==1.0.0
 pyrsistent==0.20.0
 sphinx-rtd-theme==3.1.0
 sphinx-markdown-builder==0.6.9
-sphinx==7.4.7
+sphinx==9.1.0
diff --git a/requirements-docs.txt b/requirements-docs.txt
index ef01a208..ceffc085 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,2 +1,2 @@
-Sphinx==7.4.7
+Sphinx==9.1.0
 sphinx-rtd-theme==3.1.0