diff --git a/requirements.txt b/requirements.txt
index f2a4e1d..1c1070d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ idna==2.8
 incremental==17.5.0
 itsdangerous==1.1.0
 Jinja2==2.10.1
-lxml==4.3.2
+lxml==4.6.3
 MarkupSafe==1.1.1
 multidict==4.5.2
 parsel==1.5.1