diff --git a/python/pip_freeze.txt b/python/pip_freeze.txt
index 98a1dcc..3e4d937 100644
--- a/python/pip_freeze.txt
+++ b/python/pip_freeze.txt
@@ -49,7 +49,7 @@ Keras-Applications==1.0.8
 Keras-Preprocessing==1.0.9
 kiwisolver==1.0.1
 llvmlite==0.29.0
-lxml==4.3.3
+lxml==6.1.0
 Markdown==3.1
 MarkupSafe==1.1.1
 matplotlib==3.0.3