diff --git a/misc/requirements.txt b/misc/requirements.txt
index fc032b3a..9769e249 100644
--- a/misc/requirements.txt
+++ b/misc/requirements.txt
@@ -48,7 +48,7 @@ jupyterlab-server==1.2.0
 keyring==21.5.0
 kiwisolver==1.3.1
 ldaptor==20.1.1
-lxml==4.6.1
+lxml==4.6.3
 Markdown==3.3.3
 MarkupSafe==1.1.1
 matplotlib==3.3.3