diff --git a/requirements.txt b/requirements.txt
index 9faee60..7a8e1f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@
 pytest==4.1.0
 pytest-django==3.4.4
 pytest-cov==2.6.1
-lxml==4.3.0
+lxml==4.6.3