diff --git a/python_scripts/requirements.txt b/python_scripts/requirements.txt
index b25196e..8293743 100644
--- a/python_scripts/requirements.txt
+++ b/python_scripts/requirements.txt
@@ -3,7 +3,7 @@ certifi==2019.3.9
 chardet==3.0.4
 dagr==0.71.3
 idna==2.8
-lxml==4.3.3
+lxml==4.9.1
 MechanicalSoup==0.11.0
 requests==2.21.0
 six==1.12.0