diff --git a/requirements.txt b/requirements.txt
index c45e0d7..d9792a2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ Jinja2==2.8
 jinja2-time==0.2.0
 langdetect==1.0.6
 langid==1.1.6
-lxml==3.5.0
+lxml==4.6.2
 MarkupSafe==0.23
 numpy==1.10.1
 pandas==0.17.0