diff --git a/framework/requirements.txt b/framework/requirements.txt
index 821ccd29..454402dd 100644
--- a/framework/requirements.txt
+++ b/framework/requirements.txt
@@ -34,7 +34,7 @@ idna==2.6
 ipython==5.5.0
 ipython-genutils==0.2.0
 jsonschema==2.6.0
-lxml==3.8.0
+lxml==4.6.2
 matplotlib==2.0.2
 munch==2.3.2
 numpy==1.13.1