diff --git a/requirements.txt b/requirements.txt
index 94602f2..8569e66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 httplib2==0.8
 python-dateutil==2.1
-lxml==2.3.2
+lxml==4.6.3
 nose==1.3.0
 oauth2>=1.5.211
 requests>=1.2.3