diff --git a/cv/requirements.txt b/cv/requirements.txt
index 932b581..df1b5d6 100644
--- a/cv/requirements.txt
+++ b/cv/requirements.txt
@@ -36,7 +36,7 @@ Keras-Preprocessing==1.0.2
 keras-vis==0.4.1
 kiwisolver==1.0.1
 lazy-object-proxy==1.3.1
-lxml==4.2.5
+lxml==4.9.1
 Markdown==2.6.11
 matplotlib==2.2.3
 mccabe==0.6.1