diff --git a/requirements.txt b/requirements.txt
index 858fe9e..e20d94e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ httplib2==0.7.7
 ipython==2.2.0
 kombu==3.0.24
 line-profiler==1.0
-lxml==3.1.0
+lxml==4.6.3
 meld3==0.6.10
 mimeparse==0.1.3
 MySQL-python==1.2.5