diff --git a/requirements.txt b/requirements.txt
index b00c924..5e06d9c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,6 @@ pytz==2018.5
 six==1.11.0
 dwave-system==0.7.5
 xlrd==1.2.0
-lxml==4.3.4
+lxml==4.6.3
 googlemaps==3.0.2
 seaborn==0.9.0