diff --git a/requirements.txt b/requirements.txt
index 5b55ee8..bf34f77 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ itsdangerous==1.1.0
 Jinja2==2.11.2
 lazy-object-proxy==1.5.1
 llvmlite==0.34.0
-lxml==4.5.2
+lxml==4.6.1
 Mako==1.1.3
 MarkupSafe==1.1.1
 mccabe==0.6.1