diff --git a/requirements.txt b/requirements.txt
index 6d51ffb..85188b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ requests==2.22.0
 json5==0.8.4
 plotly==4.1.0
 DateTime==4.3
-lxml==4.3.4
+lxml==4.6.2
 html5lib==1.0.1
 beautifulsoup4==4.7.1
 DateTime==4.3