diff --git a/requirements.txt b/requirements.txt
index 2a12b080..2ebe7e88 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 kiwisolver==1.1.0
 lazy-object-proxy==1.4.3
-lxml==4.4.2
+lxml==4.6.5
 Markdown==3.1.1
 matplotlib==3.1.2
 mccabe==0.6.1