diff --git a/requirements.txt b/requirements.txt
index 8493c82..37b9043 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ django-rq==0.9.1
 elasticsearch==2.3.0
 future==0.15.2
 gunicorn==19.6.0
-lxml==3.6.0
+lxml==4.9.1
 nose==1.3.7
 oauthlib==1.1.2
 parse==1.6.6