diff --git a/requirements.txt b/requirements.txt
index 2b29e5f..6ba99bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ jsonpath-rw==1.4.0
 jsonpickle==1.1
 jsonpointer==2.0
 ldap3==2.5.2
-lxml==4.3.0
+lxml==4.6.5
 MarkupSafe==1.1.0
 multidict==4.5.2
 objectpath==0.6.1