diff --git a/requirements.txt b/requirements.txt
index 15545b8..af5dcae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ jupyter_client==7.3.5
 jupyterlab-pygments==0.2.2
 jupyterlab-widgets==3.0.3
 lxml==4.9.1
-MarkupSafe==2.1.1
+MarkupSafe==2.1.3
 matplotlib-inline==0.1.6
 mistune==2.0.4
 nbclient==0.6.8