diff --git a/elections_2016/requirements.txt b/elections_2016/requirements.txt
index 4e19d3c..dbce98b 100644
--- a/elections_2016/requirements.txt
+++ b/elections_2016/requirements.txt
@@ -22,7 +22,7 @@ Jinja2==2.11.1
 jsonschema==3.2.0
 jupyter-client==5.3.4
 jupyter-core==4.6.1
-lxml==4.5.0
+lxml==4.6.5
 MarkupSafe==1.1.1
 mistune==0.8.4
 nbconvert==5.6.1