diff --git a/requirements.txt b/requirements.txt
index c8d1b58..c6af4a2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ Jinja2==2.10.3
 Werkzeug==0.15.3
 requests==2.20.0
 beautifulsoup4==4.6.3
-lxml==4.2.5
+lxml==4.6.5
 flask_cors==3.0.8
 gevent==1.4.0
 pandas==0.25.3