diff --git a/requirements-analysis.txt b/requirements-analysis.txt
index d56320e..e98dc53 100644
--- a/requirements-analysis.txt
+++ b/requirements-analysis.txt
@@ -1,6 +1,6 @@
 beautifulsoup4==4.6.0
 jupyter==1.0.0
-lxml==3.7.3
+lxml==4.9.1
 matplotlib==2.0.2
 numpy==1.12.1
 scikit-learn==0.18.1