diff --git a/requirements.txt b/requirements.txt
index 63c5db4..fd3702f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Jinja2==2.7.3
 MarkupSafe==0.22
 html5lib==0.999
-lxml==3.3.5
+lxml==4.6.2
 mccabe==0.2.1
 six==1.7.3
 speedparser==0.2.0