diff --git a/scripts/requirements.txt b/scripts/requirements.txt
index 1e1bf98..824f753 100644
--- a/scripts/requirements.txt
+++ b/scripts/requirements.txt
@@ -18,7 +18,7 @@ idna==2.8
     # via requests
 kiwisolver==1.3.1
     # via matplotlib
-lxml==4.3.3
+lxml==4.9.1
     # via -r requirements.in
 matplotlib==3.0.3
     # via -r requirements.in