diff --git a/requirements.txt b/requirements.txt
index 536a2dc..d265a12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@ charade==1.0.3
 chardet==3.0.4
 idna==2.6
 JPype1==0.6.2
-lxml==4.1.1
+lxml==4.9.1
 requests==2.18.4
 urllib3==1.22