diff --git a/sphinx/requirements.txt b/sphinx/requirements.txt
index cc54149..28a6eff 100644
--- a/sphinx/requirements.txt
+++ b/sphinx/requirements.txt
@@ -4,7 +4,7 @@ Babel==2.14.0
 beautifulsoup4==4.12.2
 certifi==2023.11.17
 charset-normalizer==3.3.2
-docutils==0.20.1
+docutils==0.21.1
 idna==3.6
 imagesize==1.4.1
 importlib-metadata==6.7.0