diff --git a/requirements.txt b/requirements.txt
index e4f0cff..ef78269 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ pandas==0.22.0
 click==6.7
 dicttoxml==1.7.4
 numpy==1.14.1
-lxml==4.2.1
+lxml==4.6.5
 jsonpickle==1.0
 python_dateutil==2.8.0