diff --git a/requirements.txt b/requirements.txt
index 06b99fc..e6adcda 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ jupyter-client==5.2.4
 jupyter-console==6.0.0
 jupyter-core==4.5.0
 kiwisolver==1.2.0
-lxml==4.5.1
+lxml==4.6.2
 MarkupSafe==1.1.1
 matplotlib==3.2.1
 mistune==0.8.4