diff --git a/requirements.txt b/requirements.txt
index 503c603..6e17329 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ Jinja2==2.10.3
 jmespath==0.9.4
 joblib==0.14.1
 jsonschema==2.6.0
-lxml==4.4.2
+lxml==4.6.5
 MarkupSafe==1.1.1
 more-itertools==8.1.0
 murmurhash==1.0.2