diff --git a/requirements-optional.txt b/requirements-optional.txt
index 30d1b9ca738..857c0ac9816 100644
--- a/requirements-optional.txt
+++ b/requirements-optional.txt
@@ -5,7 +5,7 @@ redis==5.0.3
 pre-commit==3.7.0
 
 # For generating documentation.
-sphinx==7.3.4
+sphinx==7.3.6
 sphinx-autoapi==3.0.0
 
 # For 'manage' interactive shell