diff --git a/requirements.txt b/requirements.txt
index cfc823cc086b80895a1d948745f1a403b1732e3d..f02265101cf79ee60c38972408a2c47c66d3aca5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ gevent==1.4.0
 gunicorn==19.9.0
 futures
 fuzzywuzzy==0.17.0
-lxml==4.3.4
+lxml==4.4.0
 matplotlib==2.2.4
 numpy==1.16.4
 nltk==3.4.3