diff --git a/requirements.txt b/requirements.txt
index 0a415f0..616882f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ html5lib==1.1
 idna==3.3
 Jinja2==3.0.3
 lxml==4.8.0
-MarkupSafe==2.0.1
+MarkupSafe==2.1.1
 mock==4.0.3
 multidict==5.2.0;python_version<"3.7"
 multidict==6.0.2;python_version>="3.7"