diff --git a/requirements.txt b/requirements.txt
index 683cfe40c0e4df69ddd0e666aa93bc223110a14e..6d41a89572980de445601b743569c646cb31392a 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==4.3.3
+lxml==4.3.4
 matplotlib==2.2.4
 numpy==1.16.4
 nltk==3.4.1