diff --git a/client/requirements.txt b/client/requirements.txt
index 1d7e41e..47fd31d 100644
--- a/client/requirements.txt
+++ b/client/requirements.txt
@@ -5,7 +5,7 @@ django-uniauth==1.0.4
 docutils==0.14
 idna==2.8
 jmespath==0.9.4
-lxml==4.3.2
+lxml==4.9.1
 PyJWT==1.7.1
 python-cas==1.4.0
 python-dateutil==2.8.0