diff --git a/requirements.txt b/requirements.txt
index 2ef0251..ffe1f50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ geographiclib==1.49
 geopy==1.18.1
 gunicorn==19.9.0
 idna==2.8
-lxml==4.3.1
+lxml==4.6.5
 psycopg2==2.7.7
 python-dateutil==2.8.0
 pytz==2018.9