diff --git a/doc/requirements.txt b/doc/requirements.txt
index 3571388ed0..1e840cc48b 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==5.1.1
+sphinx==6.1.1
 PyQt6==6.3.1
 sphinx_rtd_theme
 numpy