diff --git a/requirements.txt b/requirements.txt
index 6c501e8..0c7c5b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ jupyter-client==5.3.4
 jupyter-console==6.0.0
 jupyter-core==4.6.0
 kiwisolver==1.1.0
-lxml==4.3.0
+lxml==4.6.2
 Markdown==3.1.1
 MarkupSafe==1.1.1
 matplotlib==3.1.1